M.E. Limes, E.L. Foley, T.W. Kornack, S. Caliga, S. McBride, A. Braun, W. Lee, V.G. Lucivero, and M.V. Romalis
Phys. Rev. Applied 14, 011002 (2020) - Published 20 July, 2020
The authors report a striking advance in measuring tiny magnetic fields under ambient conditions, using atom–light-interaction techniques enabled by cutting-edge technology. A prototype sensor detects the magnetic fields generated by the human brain or heart, in a field-deployable system that works with great sensitivity, unshielded in Earth’s own magnetic field. This technology is scalable to arrays and can be made low-cost, which opens pathways to a wide variety of applications, such as field triage, brain-machine interfaces, and magnetic navigation.
Hyungki Shim, Haejun Chung, and Owen D. Miller
Phys. Rev. Applied 14, 014007 (2020) - Published 2 July, 2020
Concentrating free-space optical beams onto arbitrarily small spots is of immense interest for applications from imaging to 3D printing, but the extent to which light concentration below the diffraction limit can be achieved is still unclear. This study establishes upper bounds on light concentration for any beam-shaping device, and uses inverse design to discover structures operating near these limits. These bounds can serve as guideposts for future designs operating at ultrahigh resolution.
Daniela P. Valdés, Enio Lima, Jr., Roberto D. Zysler, and Emilio De Biasi
Phys. Rev. Applied 14, 014023 (2020) - Published 9 July, 2020
Magnetic fluid hyperthermia is an emerging cancer therapy for the selective destruction of tumors via localized heating. Here magnetic interactions among nanoparticles can drastically modify the specific power absorption, but the effects of interactions in chainlike arrangements are not well understood. This theoretical study employs a probabilistic model that goes beyond linear-response theory, accounting for the effects of temperature, frequency, and corrections to the local field on each nanoparticle. The analysis addresses different chain configurations and experimental conditions, which is crucial to understanding situations where agglomeration is almost inevitable.
Sajjad Taravati and George V. Eleftheriades
Phys. Rev. Applied 14, 014027 (2020) - Published 9 July, 2020
Recent research on time-modulated metamaterials has revealed physical phenomena and applications such as optical harmonic generation, parametric amplification, frequency mixing, and nonreciprocity. From their study of time-modulated twin meta-atoms, from concept to experimental implementation, the authors realize a nonreciprocal beam-steering transmissive phase-gradient metasurface. Unlike other recent proposals, here the transmitted wave has the same frequency as the incident wave, while all undesired time harmonics are significantly suppressed. This promotes high conversion efficiency, which is paramount for practical applications such as satellite or cellular wireless communication.
Uwe Rau, Vito Huhn, and Bart E. Pieters
Phys. Rev. Applied 14, 014046 (2020) - Published 16 July, 2020
This study investigates the phenomenon of from an illuminated solar cell under low or zero voltage bias—a luminescence that shouldn’t be there, in an ideal solar cell. More broadly, the investigation shows that residual luminescence is a generic consequence of the finite coupling strength between the electron-hole system inside the photovoltaic absorber and the external electrical circuit. For the important case of a classic junction, the authors derive an analytical expression for this coupling strength, and for experiments with a real Cu(In,Ga)Se solar cell, they offer an in-depth analysis of the efficiency losses resulting from the finite coupling. The conclusions of this work apply to solar cell.
Charlotte K. Hagen, Fabio A. Vittoria, Oriol Roche i Morgó, Marco Endrizzi, and Alessandro Olivo
Phys. Rev. Applied 14, 014069 (2020) - Published 23 July, 2020
X-ray computed tomography has emerged as a versatile tool in biology, biomedicine, and materials science, providing high-resolution three-dimensional images. However, high-resolution imaging typically requires the use of specialized sources and detectors, and long scan times—plus the delivery of high doses of radiation. The authors develop an imaging concept for x-ray computed tomography that allows high resolution with “low-resolution” equipment, in much less time, and without a significant dose increase. This approach is expected to provide advantages in preclinical imaging, where longitudinal studies in small animals currently are severely restricted by dose constraints.
Tanay Roy, Sumeru Hazra, Suman Kundu, Madhavi Chand, Meghan P. Patankar, and R. Vijay
Phys. Rev. Applied 14, 014072 (2020) - Published 23 July, 2020
Higher-dimensional gates involving more than two qubits could play a major role in boosting the performance of quantum processors. While native two-qubit gates are ubiquitous on the superconducting-qubit platform, realizing high-fidelity three-qubit gates is challenging and typically requires multiple two-qubit gates, which leads to error accumulation. The authors utilize a multimodal “trimon” circuit to realize three-qubit gates that enable efficient implementation of important quantum algorithms, such as Grover’s search. These results point to improved processor performance when the trimon is used as a building block for larger systems.
Wonbae Bang, James Sturm, Raffaele Silvani, Mojtaba T. Kaffash, Axel Hoffmann, John B. Ketterson, Federico Montoncello, and M. Benjamin Jungfleisch
Phys. Rev. Applied 14, 014079 (2020) - Published 27 July, 2020
Stuck in the middle with you: The spin-wave mode localized in the contact area among macrospins in an artificial spin ice (ASI) is interesting for magnonic devices and applications. Detection and characterization of this mode is difficult, though. This study uses carefully designed lattices of individual macrospins with the right aspect ratio of individual nanoelements, the right geometry of macrospins on an ASI vertex, and the right configuration for clear detection of the spin dynamics. The localized mode is found to exhibit a peculiar sensitivity to the applied field’s direction, which could impact applications such as magnonic position transducers.
Ersoy Şaşıoğlu, Thorsten Aull, Dorothea Kutschabsky, Stefan Blügel, and Ingrid Mertig
Phys. Rev. Applied 14, 014082 (2020) - Published 27 July, 2020
Conventional semiconductor diodes have a junction barrier, and thus a threshold voltage, which gives rise to heat dissipation. The authors propose a diode concept based on half-metallic magnets (HMMs) and spin-gapless semiconductors (SGSs). The HMM-SGS junction does not have a barrier and behaves like an Ohmic contact under forward bias, while for reverse bias the current is blocked by spin-dependent filtering of the electrons. Thus the proposed diode exhibits a threshold voltage of zero, linear characteristics, and much higher current-drive capability. The authors provide a detailed description of the concept and give proof of principle by quantum transport calculations.
L. Cao, W. Luo, Y.X. Wang, J. Zou, R.D. Yan, H. Cai, Y. Zhang, X.L. Hu, C. Jiang, W.J. Fan, X.Q. Zhou, B. Dong, X.S. Luo, G.Q. Lo, Y.X. Wang, Z.W. Xu, S.H. Sun, X.B. Wang, Y.L. Hao, Y.F. Jin, D.L. Kwong, L.C. Kwek, and A.Q. Liu
Phys. Rev. Applied 14, 011001 (2020) - Published 17 July, 2020
Photonic chip integration would greatly benefit quantum key distribution (QKD) systems for secure communication, in terms of compactness, scalability, and well-established fabrication techniques. This study demonstrates proof of concept for an all-chip measurement-device-independent QKD system using integrated silicon photonic technology. The prototype generates a key rate per pulse of over a distance corresponding to 50 km of standard fiber with 25% detection efficiency; the system is projected to be able to work at 120 km with 85% detection efficiency. This technology shows great promise for highly integrated quantum communication networks.
M.E. Limes, E.L. Foley, T.W. Kornack, S. Caliga, S. McBride, A. Braun, W. Lee, V.G. Lucivero, and M.V. Romalis
Phys. Rev. Applied 14, 011002 (2020) - Published 20 July, 2020
The authors report a striking advance in measuring tiny magnetic fields under ambient conditions, using atom–light-interaction techniques enabled by cutting-edge technology. A prototype sensor detects the magnetic fields generated by the human brain or heart, in a field-deployable system that works with great sensitivity, unshielded in Earth’s own magnetic field. This technology is scalable to arrays and can be made low-cost, which opens pathways to a wide variety of applications, such as field triage, brain-machine interfaces, and magnetic navigation.
Dongyang Chen, Hemin Zhang, Jiangkun Sun, Milind Pandit, Guillermo Sobreviela, Yong Wang, Qian Zhang, Xuying Chen, Ashwin Seshia, and Jin Xie
Phys. Rev. Applied 14, 014001 (2020) - Published 1 July, 2020
Hamid Tabaei Kazerooni, Alexander Thieme, Jörg Schumacher, and Christian Cierpka
Phys. Rev. Applied 14, 014002 (2020) - Published 1 July, 2020
A.A. Mazanik, I.R. Rahmonov, A.E. Botha, and Yu.M. Shukrinov
Phys. Rev. Applied 14, 014003 (2020) - Published 1 July, 2020
S. Yu. Bodnar, Y. Skourski, O. Gomonay, J. Sinova, M. Kläui, and M. Jourdan
Phys. Rev. Applied 14, 014004 (2020) - Published 1 July, 2020
M. Shaat, M.A. Moubarez, M.O. Khan, M.A. Khan, and A. Alzo'ubi
Phys. Rev. Applied 14, 014005 (2020) - Published 2 July, 2020
Travis C. Briles, Su-Peng Yu, Tara E. Drake, Jordan R. Stone, and Scott B. Papp
Phys. Rev. Applied 14, 014006 (2020) - Published 2 July, 2020
Hyungki Shim, Haejun Chung, and Owen D. Miller
Phys. Rev. Applied 14, 014007 (2020) - Published 2 July, 2020
Concentrating free-space optical beams onto arbitrarily small spots is of immense interest for applications from imaging to 3D printing, but the extent to which light concentration below the diffraction limit can be achieved is still unclear. This study establishes upper bounds on light concentration for any beam-shaping device, and uses inverse design to discover structures operating near these limits. These bounds can serve as guideposts for future designs operating at ultrahigh resolution.
Jun Wang, Fubao Yang, Liujun Xu, and Jiping Huang
Phys. Rev. Applied 14, 014008 (2020) - Published 2 July, 2020
D.P.L. Aude Craik, P. Kehayias, A.S. Greenspon, X. Zhang, M.J. Turner, J.M. Schloss, E. Bauch, C.A. Hart, E.L. Hu, and R.L. Walsworth
Phys. Rev. Applied 14, 014009 (2020) - Published 6 July, 2020
Noriyuki Kinugawa, Shigeo Asahi, and Takashi Kita
Phys. Rev. Applied 14, 014010 (2020) - Published 6 July, 2020
Gal Ness, Anastasiya Vainbaum, Constantine Shkedrov, Yanay Florshaim, and Yoav Sagi
Phys. Rev. Applied 14, 014011 (2020) - Published 6 July, 2020
Jun-Wen Xu and Andrew D. Kent
Phys. Rev. Applied 14, 014012 (2020) - Published 6 July, 2020
Yijin Xie, Jianpei Geng, Huiyao Yu, Xing Rong, Ya Wang, and Jiangfeng Du
Phys. Rev. Applied 14, 014013 (2020) - Published 6 July, 2020
A. Rastogi, Z. Li, A.V. Singh, S. Regmi, T. Peters, P. Bougiatioti, D. Carsten né Meier, J.B. Mohammadi, B. Khodadadi, T. Mewes, R. Mishra, J. Gazquez, A.Y. Borisevich, Z. Galazka, R. Uecker, G. Reiss, T. Kuschel, and A. Gupta
Phys. Rev. Applied 14, 014014 (2020) - Published 7 July, 2020
Stephen Edward, Hao Zhang, Irwan Setija, Vanessa Verrina, Alessandro Antoncecchi, Stefan Witte, and Paul Planken
Phys. Rev. Applied 14, 014015 (2020) - Published 7 July, 2020
Subrata Ghosh, Arup Ghosh, Pintu Sen, and Kalyan Mandal
Phys. Rev. Applied 14, 014016 (2020) - Published 7 July, 2020
Jinjun Ding, Chuanpu Liu, Yuejie Zhang, Uppalaiah Erugu, Zhiyong Quan, Rui Yu, Ethan McCollum, Songyu Mo, Sheng Yang, Haifeng Ding, Xiaohong Xu, Jinke Tang, Xiaofei Yang, and Mingzhong Wu
Phys. Rev. Applied 14, 014017 (2020) - Published 7 July, 2020
Weihao Liu, Zijia Yu, Li Sun, Yucheng Liu, Qika Jia, Hongliang Xu, and Baogen Sun
Phys. Rev. Applied 14, 014018 (2020) - Published 7 July, 2020
Ya Zhang, Ryoka Kondo, Boqi Qiu, Xin Liu, and Kazuhiko Hirakawa
Phys. Rev. Applied 14, 014019 (2020) - Published 8 July, 2020
I. Sochnikov, D. Davino, and B. Kalisky
Phys. Rev. Applied 14, 014020 (2020) - Published 8 July, 2020
Eiichi Hirose, GariLynn Billingsley, Liyuan Zhang, Hiroaki Yamamoto, Laurent Pinard, Christoph Michel, Danièle Forest, Bill Reichman, and Mark Gross
Phys. Rev. Applied 14, 014021 (2020) - Published 8 July, 2020
Shukai Ma, Sendy Phang, Zachary Drikas, Bisrat Addissie, Ronald Hong, Valon Blakaj, Gabriele Gradoni, Gregor Tanner, Thomas M. Antonsen, Edward Ott, and Steven M. Anlage
Phys. Rev. Applied 14, 014022 (2020) - Published 8 July, 2020
Daniela P. Valdés, Enio Lima, Jr., Roberto D. Zysler, and Emilio De Biasi
Phys. Rev. Applied 14, 014023 (2020) - Published 9 July, 2020
Magnetic fluid hyperthermia is an emerging cancer therapy for the selective destruction of tumors via localized heating. Here magnetic interactions among nanoparticles can drastically modify the specific power absorption, but the effects of interactions in chainlike arrangements are not well understood. This theoretical study employs a probabilistic model that goes beyond linear-response theory, accounting for the effects of temperature, frequency, and corrections to the local field on each nanoparticle. The analysis addresses different chain configurations and experimental conditions, which is crucial to understanding situations where agglomeration is almost inevitable.
Yiming Pan and Jian Zhou
Phys. Rev. Applied 14, 014024 (2020) - Published 9 July, 2020
Rahul Trivedi, Guillermo Angeris, Logan Su, Stephen Boyd, Shanhui Fan, and Jelena Vučković
Phys. Rev. Applied 14, 014025 (2020) - Published 9 July, 2020
Zheng Xi, Sander Konijnenberg, and H.P. Urbach
Phys. Rev. Applied 14, 014026 (2020) - Published 9 July, 2020
Sajjad Taravati and George V. Eleftheriades
Phys. Rev. Applied 14, 014027 (2020) - Published 9 July, 2020
Recent research on time-modulated metamaterials has revealed physical phenomena and applications such as optical harmonic generation, parametric amplification, frequency mixing, and nonreciprocity. From their study of time-modulated twin meta-atoms, from concept to experimental implementation, the authors realize a nonreciprocal beam-steering transmissive phase-gradient metasurface. Unlike other recent proposals, here the transmitted wave has the same frequency as the incident wave, while all undesired time harmonics are significantly suppressed. This promotes high conversion efficiency, which is paramount for practical applications such as satellite or cellular wireless communication.
E. Tisbi, E. Placidi, R. Magri, P. Prosposito, R. Francini, A. Zaganelli, S. Cecchi, E. Zallo, R. Calarco, E. Luna, J. Honolka, M. Vondráček, S. Colonna, and F. Arciprete
Phys. Rev. Applied 14, 014028 (2020) - Published 10 July, 2020
Yarden Mazor and Andrea Alù
Phys. Rev. Applied 14, 014029 (2020) - Published 10 July, 2020
M. Chwalla, K. Danzmann, M. Dovale Álvarez, J.J. Esteban Delgado, G. Fernández Barranco, E. Fitzsimons, O. Gerberding, G. Heinzel, C.J. Killow, M. Lieser, M. Perreur-Lloyd, D.I. Robertson, J.M. Rohr, S. Schuster, T.S. Schwarze, M. Tröbs, G. Wanner, and H. Ward
Phys. Rev. Applied 14, 014030 (2020) - Published 10 July, 2020
Dong-Xia Qu, Joel Berry, Nicholas P. Calta, Michael F. Crumb, Gabe Guss, and Manyalibo J. Matthews
Phys. Rev. Applied 14, 014031 (2020) - Published 10 July, 2020
Zuanming Jin, Jugeng Li, Wenjie Zhang, Chenyang Guo, Caihua Wan, Xiufeng Han, Zhenxiang Cheng, Chao Zhang, Alexey V. Balakin, Alexander P. Shkurinov, Yan Peng, Guohong Ma, Yiming Zhu, Jianquan Yao, and Songlin Zhuang
Phys. Rev. Applied 14, 014032 (2020) - Published 13 July, 2020
K. Ogren, J. Nattress, and I. Jovanovic
Phys. Rev. Applied 14, 014033 (2020) - Published 13 July, 2020
Kenta Chokawa, Tetsuo Narita, Daigo Kikuta, Koji Shiozaki, Tetsu Kachi, Atsushi Oshiyama, and Kenji Shiraishi
Phys. Rev. Applied 14, 014034 (2020) - Published 13 July, 2020
Y.T. Zhao, J.W. Rao, Y.S. Gui, Y.P. Wang, and C.-M. Hu
Phys. Rev. Applied 14, 014035 (2020) - Published 13 July, 2020
Ramzil R. Galiev, Nikita M. Kondratiev, Valery E. Lobanov, Andrey B. Matsko, and Igor A. Bilenko
Phys. Rev. Applied 14, 014036 (2020) - Published 13 July, 2020
Bivas Rana, Collins Ashu Akosa, Katsuya Miura, Hiromasa Takahashi, Gen Tatara, and YoshiChika Otani
Phys. Rev. Applied 14, 014037 (2020) - Published 14 July, 2020
Yifan Zhu, Shi-Wang Fan, Liyun Cao, Krupali Donda, and Badreddine Assouar
Phys. Rev. Applied 14, 014038 (2020) - Published 14 July, 2020
Xing-Tao An and Wang Yao
Phys. Rev. Applied 14, 014039 (2020) - Published 14 July, 2020
is the intriguing ability of massless Dirac electrons to tunnel through potential barriers, distinguishing graphene electronics from conventional electronics. Graphene’s electronic structure also features a valley degree of freedom that can be used as an information carrier. Here the authors discover a remarkable functionality that arises counterintuitively from intervalley scattering: Quantum interference of intervalley backscatterings creates a pseudospin gap in a superlattice barrier, selectively blocking transmission in one valley while permitting Klein tunneling in the other. Thus a sort of valleytronic polarizer of pseudospin current could be realized.
R.N.S. Rajapakse, Z.M. Zeng, and H.W. Jiang
Phys. Rev. Applied 14, 014040 (2020) - Published 14 July, 2020
Letizia Catalini, Yeghishe Tsaturyan, and Albert Schliesser
Phys. Rev. Applied 14, 014041 (2020) - Published 15 July, 2020
Jan Košata, Oded Zilberberg, Christian L. Degen, R. Chitra, and Alexander Eichler
Phys. Rev. Applied 14, 014042 (2020) - Published 15 July, 2020
Ya-Xi Shen, Long-Sheng Zeng, Zhi-Guo Geng, De-Gang Zhao, Yu-Gui Peng, and Xue-Feng Zhu
Phys. Rev. Applied 14, 014043 (2020) - Published 15 July, 2020
Joseph C. Chapman, Trent M. Graham, Christopher K. Zeitler, Herbert J. Bernstein, and Paul G. Kwiat
Phys. Rev. Applied 14, 014044 (2020) - Published 15 July, 2020
Sun Kyung Lee, Tai Hyun Yoon, and Minhaeng Cho
Phys. Rev. Applied 14, 014045 (2020) - Published 15 July, 2020
Uwe Rau, Vito Huhn, and Bart E. Pieters
Phys. Rev. Applied 14, 014046 (2020) - Published 16 July, 2020
This study investigates the phenomenon of from an illuminated solar cell under low or zero voltage bias—a luminescence that shouldn’t be there, in an ideal solar cell. More broadly, the investigation shows that residual luminescence is a generic consequence of the finite coupling strength between the electron-hole system inside the photovoltaic absorber and the external electrical circuit. For the important case of a classic junction, the authors derive an analytical expression for this coupling strength, and for experiments with a real Cu(In,Ga)Se solar cell, they offer an in-depth analysis of the efficiency losses resulting from the finite coupling. The conclusions of this work apply to solar cell.
Ana Laura Gramajo, Dan Campbell, Bharath Kannan, David K. Kim, Alexander Melville, Bethany M. Niedzielski, Jonilyn L. Yoder, María José Sánchez, Daniel Domínguez, Simon Gustavsson, and William D. Oliver
Phys. Rev. Applied 14, 014047 (2020) - Published 16 July, 2020
Ripeng Luo, Siwei Zhang, Shichao Zhao, Jingzhou Li, Feiyu Kang, Kuang Yu, and Guodan Wei
Phys. Rev. Applied 14, 014048 (2020) - Published 16 July, 2020
Shiyao Wu, Kai Peng, Xin Xie, Jingnan Yang, Shan Xiao, Feilong Song, Jianchen Dang, Sibai Sun, Longlong Yang, Yunuan Wang, Shushu Shi, Jiongji He, Zhanchun Zuo, and Xiulai Xu
Phys. Rev. Applied 14, 014049 (2020) - Published 16 July, 2020
Mrinal K. Sikdar, Nitul S. Rajput, Ajanta Maity, and Pratap K. Sahoo
Phys. Rev. Applied 14, 014050 (2020) - Published 16 July, 2020
Ilaria Vagniluca, Beatrice Da Lio, Davide Rusca, Daniele Cozzolino, Yunhong Ding, Hugo Zbinden, Alessandro Zavatta, Leif K. Oxenløwe, and Davide Bacco
Phys. Rev. Applied 14, 014051 (2020) - Published 17 July, 2020
T. Hiemstra, T.F. Parker, P. Humphreys, J. Tiedau, M. Beck, M. Karpiński, B.J. Smith, A. Eckstein, W.S. Kolthammer, and I.A. Walmsley
Phys. Rev. Applied 14, 014052 (2020) - Published 17 July, 2020
H. Mishra, M. Hehn, S. Hage-Ali, S. Petit-Watelot, P.W. Mengue, S. Zghoon, H. M’Jahed, D. Lacour, and O. Elmazria
Phys. Rev. Applied 14, 014053 (2020) - Published 17 July, 2020
Alessandro Pitanti, Tapani Makkonen, Martin F. Colombano, Simone Zanotto, Leonardo Vicarelli, Marco Cecchini, Amadeu Griol, Daniel Navarro-Urrios, Clivia Sotomayor-Torres, Alejandro Martinez, and Jouni Ahopelto
Phys. Rev. Applied 14, 014054 (2020) - Published 17 July, 2020
F. Münzhuber, F. Bayer, V. Marković, J. Brehm, J. Kleinlein, L. W. Molenkamp, and T. Kiessling
Phys. Rev. Applied 14, 014055 (2020) - Published 20 July, 2020
S. Timpa, J. Rastikian, S. Suffit, P. Lafarge, C. Barraud, and M.L. Della Rocca
Phys. Rev. Applied 14, 014056 (2020) - Published 20 July, 2020
Cheng Jin, Xiangyu Tang, Baochang Li, Kan Wang, and C. D. Lin
Phys. Rev. Applied 14, 014057 (2020) - Published 20 July, 2020
Robert Rantz and Shad Roundy
Phys. Rev. Applied 14, 014058 (2020) - Published 20 July, 2020
Zhenyu Cai
Phys. Rev. Applied 14, 014059 (2020) - Published 21 July, 2020
C.J.R. Duncan, D.A. Muller, and J.M. Maxson
Phys. Rev. Applied 14, 014060 (2020) - Published 21 July, 2020
Sutapa Ghosh and Gadi Eisenstein
Phys. Rev. Applied 14, 014061 (2020) - Published 21 July, 2020
Zeeshan Mustafa, Dhanapal Pravarthana, Baomin Wang, Huali Yang, and Run-Wei Li
Phys. Rev. Applied 14, 014062 (2020) - Published 21 July, 2020
Luojia Wang, Luqi Yuan, Xianfeng Chen, and Shanhui Fan
Phys. Rev. Applied 14, 014063 (2020) - Published 21 July, 2020
Xipu Dong, Jierong Cheng, Fei Fan, Xianghui Wang, and Shengjiang Chang
Phys. Rev. Applied 14, 014064 (2020) - Published 22 July, 2020
Peng Yin, Yuki Takeuchi, Wen-Hao Zhang, Zhen-Qiang Yin, Yuichiro Matsuzaki, Xing-Xiang Peng, Xiao-Ye Xu, Jin-Shi Xu, Jian-Shun Tang, Zong-Quan Zhou, Geng Chen, Chuan-Feng Li, and Guang-Can Guo
Phys. Rev. Applied 14, 014065 (2020) - Published 22 July, 2020
Dahai Yang, Chang Li, Zhigang Yao, Xiangdong Huang, Yan Li, Peng Jin, and Jie Lin
Phys. Rev. Applied 14, 014066 (2020) - Published 22 July, 2020
M.E. Povarnitsyn, N.S. Shcheblanov, D.S. Ivanov, V. Yu. Timoshenko, and S.M. Klimentov
Phys. Rev. Applied 14, 014067 (2020) - Published 22 July, 2020
Yuke Zhang, Qiong Yang, Lingling Tao, Evgeny Y. Tsymbal, and Vitaly Alexandrov
Phys. Rev. Applied 14, 014068 (2020) - Published 22 July, 2020
Charlotte K. Hagen, Fabio A. Vittoria, Oriol Roche i Morgó, Marco Endrizzi, and Alessandro Olivo
Phys. Rev. Applied 14, 014069 (2020) - Published 23 July, 2020
X-ray computed tomography has emerged as a versatile tool in biology, biomedicine, and materials science, providing high-resolution three-dimensional images. However, high-resolution imaging typically requires the use of specialized sources and detectors, and long scan times—plus the delivery of high doses of radiation. The authors develop an imaging concept for x-ray computed tomography that allows high resolution with “low-resolution” equipment, in much less time, and without a significant dose increase. This approach is expected to provide advantages in preclinical imaging, where longitudinal studies in small animals currently are severely restricted by dose constraints.
Mikyung Lim, Jaeman Song, Seung S. Lee, Jungchul Lee, and Bong Jae Lee
Phys. Rev. Applied 14, 014070 (2020) - Published 23 July, 2020
Mehrzad Roudini, Dennis Niedermeier, Frank Stratmann, and Andreas Winkler
Phys. Rev. Applied 14, 014071 (2020) - Published 23 July, 2020
Tanay Roy, Sumeru Hazra, Suman Kundu, Madhavi Chand, Meghan P. Patankar, and R. Vijay
Phys. Rev. Applied 14, 014072 (2020) - Published 23 July, 2020
Higher-dimensional gates involving more than two qubits could play a major role in boosting the performance of quantum processors. While native two-qubit gates are ubiquitous on the superconducting-qubit platform, realizing high-fidelity three-qubit gates is challenging and typically requires multiple two-qubit gates, which leads to error accumulation. The authors utilize a multimodal “trimon” circuit to realize three-qubit gates that enable efficient implementation of important quantum algorithms, such as Grover’s search. These results point to improved processor performance when the trimon is used as a building block for larger systems.
Yabei Wu, Weiyi Xia, Yubo Zhang, Wenguang Zhu, Wenqing Zhang, and Peihong Zhang
Phys. Rev. Applied 14, 014073 (2020) - Published 23 July, 2020
Sean McSherry and Andrej Lenert
Phys. Rev. Applied 14, 014074 (2020) - Published 24 July, 2020
Yoav Green, Ramadan Abu-Rjal, and Ran Eshel
Phys. Rev. Applied 14, 014075 (2020) - Published 24 July, 2020
Ana Díaz-Rubio and Sergei Tretyakov
Phys. Rev. Applied 14, 014076 (2020) - Published 24 July, 2020
Mara Strungaru, Sergiu Ruta, Richard F.L. Evans, and Roy W. Chantrell
Phys. Rev. Applied 14, 014077 (2020) - Published 24 July, 2020
Tarek Mealy, Ahmed F. Abdelshafy, and Filippo Capolino
Phys. Rev. Applied 14, 014078 (2020) - Published 24 July, 2020
Wonbae Bang, James Sturm, Raffaele Silvani, Mojtaba T. Kaffash, Axel Hoffmann, John B. Ketterson, Federico Montoncello, and M. Benjamin Jungfleisch
Phys. Rev. Applied 14, 014079 (2020) - Published 27 July, 2020
Stuck in the middle with you: The spin-wave mode localized in the contact area among macrospins in an artificial spin ice (ASI) is interesting for magnonic devices and applications. Detection and characterization of this mode is difficult, though. This study uses carefully designed lattices of individual macrospins with the right aspect ratio of individual nanoelements, the right geometry of macrospins on an ASI vertex, and the right configuration for clear detection of the spin dynamics. The localized mode is found to exhibit a peculiar sensitivity to the applied field’s direction, which could impact applications such as magnonic position transducers.
Lucian Pintilie, Georgia Andra Boni, Cristina Chirila, Luminita Hrib, Lucian Trupina, Lucian Dragos Filip, and Ioana Pintilie
Phys. Rev. Applied 14, 014080 (2020) - Published 27 July, 2020
Rui Feng, Badreddine Ratni, Jianjia Yi, Kuang Zhang, Xumin Ding, Hailin Zhang, André de Lustrac, and Shah Nawaz Burokur
Phys. Rev. Applied 14, 014081 (2020) - Published 27 July, 2020
Ersoy Şaşıoğlu, Thorsten Aull, Dorothea Kutschabsky, Stefan Blügel, and Ingrid Mertig
Phys. Rev. Applied 14, 014082 (2020) - Published 27 July, 2020
Conventional semiconductor diodes have a junction barrier, and thus a threshold voltage, which gives rise to heat dissipation. The authors propose a diode concept based on half-metallic magnets (HMMs) and spin-gapless semiconductors (SGSs). The HMM-SGS junction does not have a barrier and behaves like an Ohmic contact under forward bias, while for reverse bias the current is blocked by spin-dependent filtering of the electrons. Thus the proposed diode exhibits a threshold voltage of zero, linear characteristics, and much higher current-drive capability. The authors provide a detailed description of the concept and give proof of principle by quantum transport calculations.
Francesco Bertazzi, Alberto Tibaldi, Michele Goano, Jesus Alberto Gonzalez Montoya, and Enrico Bellotti
Phys. Rev. Applied 14, 014083 (2020) - Published 28 July, 2020
Qian Wu, Hui Chen, Xiaopeng Li, and Guoliang Huang
Phys. Rev. Applied 14, 014084 (2020) - Published 28 July, 2020
L.M. Oberg, M.O. de Vries, L. Hanlon, K. Strazdins, M S.J. Barson, M.W. Doherty, and J. Wrachtrup
Phys. Rev. Applied 14, 014085 (2020) - Published 28 July, 2020
Boris Kalinic, Tiziana Cesca, Sandro Mignuzzi, Andrea Jacassi, Ionut Gabriel Balasa, Stefan A. Maier, Riccardo Sapienza, and Giovanni Mattei
Phys. Rev. Applied 14, 014086 (2020) - Published 28 July, 2020
Palwinder Singh, Gurpreet Kaur, Nandan Ghorai, Tanmay Goswami, Anup Thakur, and Hirendra N. Ghosh
Phys. Rev. Applied 14, 014087 (2020) - Published 28 July, 2020
Walid Al Misba, Md Mahadi Rajib, Dhritiman Bhattacharya, and Jayasimha Atulasimha
Phys. Rev. Applied 14, 014088 (2020) - Published 29 July, 2020
Yan Meng, Xiao Li, Zixian Liang, Jack Ng, and Jensen Li
Phys. Rev. Applied 14, 014089 (2020) - Published 29 July, 2020
D.V. Khomitsky, E.A. Lavrukhina, and E.Ya. Sherman
Phys. Rev. Applied 14, 014090 (2020) - Published 29 July, 2020
Christopher E. Patrick, George A. Marchant, and Julie B. Staunton
Phys. Rev. Applied 14, 014091 (2020) - Published 29 July, 2020
Ivan P. Nevirkovets, Mikhail A. Belogolovskii, and John B. Ketterson
Phys. Rev. Applied 14, 014092 (2020) - Published 29 July, 2020
Takayoshi Hachijo, Hiroshi Gotoda, Toshio Nishizawa, and Junichi Kazawa
Phys. Rev. Applied 14, 014093 (2020) - Published 30 July, 2020
J. Wang, X.B. Li, L.F. Gan, Y. Xie, C.L. Zhong, C.T. Zhou, S.P. Zhu, X.T. He, and B. Qiao
Phys. Rev. Applied 14, 014094 (2020) - Published 30 July, 2020
Shaohai Chen, Guanjie Wu, Qidong Xie, Jing Zhou, Xinyu Shu, Zongzhi Zhang, and Jingsheng Chen
Phys. Rev. Applied 14, 014095 (2020) - Published 30 July, 2020
Runze Chen, Chen Li, Yu Li, James J. Miles, Giacomo Indiveri, Steve Furber, Vasilis F. Pavlidis, and Christoforos Moutafis
Phys. Rev. Applied 14, 014096 (2020) - Published 30 July, 2020
Matthew J. Turner, Nicholas Langellier, Rachel Bainbridge, Dan Walters, Srujan Meesala, Thomas M. Babinec, Pauli Kehayias, Amir Yacoby, Evelyn Hu, Marko Lončar, Ronald L. Walsworth, and Edlyn V. Levine
Phys. Rev. Applied 14, 014097 (2020) - Published 31 July, 2020
T. Prokscha, K.-H. Chow, Z. Salman, E. Stilp, and A. Suter
Phys. Rev. Applied 14, 014098 (2020) - Published 31 July, 2020
Liang Xiang, Zhiwen Zong, Zhenhai Sun, Ze Zhan, Ying Fei, Zhangjingzi Dong, Chongxin Run, Zhilong Jia, Peng Duan, Jianlan Wu, Yi Yin, and Guoping Guo
Phys. Rev. Applied 14, 014099 (2020) - Published 31 July, 2020
Huo Chen and Daniel A. Lidar
Phys. Rev. Applied 14, 014100 (2020) - Published 31 July, 2020
