Reed Yalisove, Suk Hyun Sung, Peter Ercius, and Robert Hovden
Phys. Rev. Applied 15, 014003 (2021) - Published 5 January, 2021
A prime goal in science is to directly measure the complete three-dimensional (3D) arrangement of atoms in matter. Sampling limitations and the connection between lateral resolution and depth of focus have limited such measurements to the smallest specimens. Here the authors show that aberration-corrected scanning transmission electron tomography can offer dose-efficient 3D reconstruction that measures (up to a specified cutoff resolution) complete information for specimens of any size, with no sampling limit. The team presents analytic descriptions of resolution, sampling, object size, and dose in convergent-beam tomography, in direct analogy to the traditional Crowther-Klug criterion.
Xin Wen, Kai Tan, Qian Deng, and Shengping Shen
Phys. Rev. Applied 15, 014032 (2021) - Published 19 January, 2021
Flexoelectricity, in which a dielectric material develops an electrical polarization in response to mechanical strain, is an important degree of freedom for designing actuators with simpler structure and higher performance. Its applications are usually limited to the nanoscale, though, due to the phenomenon’s inherent size dependence. This study presents an flexoelectret effect in silicone elastomers to overcome this limitation, which is due to the interplay of electrets and Maxwell stress. The approach here opens an avenue for applying macroscopic flexoelectricity in actuators and flexible electronics.
Felix M. Mayor, Wentao Jiang, Christopher J. Sarabalis, Timothy P. McKenna, Jeremy D. Witmer, and Amir H. Safavi-Naeini
Phys. Rev. Applied 15, 014039 (2021) - Published 21 January, 2021
Phononic integrated circuits that guide acoustic waves at wavelength scale offer great potential for devices in communications, sensing, and quantum technologies. Unfortunately, conventional phononic waveguides either are suspended, which prevents large-scale integration, or suffer from inefficient acoustic wave transduction. Surmounting these issues, this work implements unreleased-rib phononic circuits operating at 3.4 GHz with efficient, compact transducers in a thin-film platform of lithium niobate on sapphire. These circuits allow the authors to demonstrate mass sensing, high-quality resonators, and the characterization of low-power acoustic four-wave mixing.
Anna Sitek, Kristinn Torfason, Andrei Manolescu, and Ágúst Valfells
Phys. Rev. Applied 15, 014040 (2021) - Published 21 January, 2021
Thermionic cathodes are important in many electronic devices, due to their low cost and robust nature. Their transition from thermionic to space-charge-limited emission remains poorly understood, even though it is the regime in which they are normally operated. This study uses simulations of electron emission and propagation from a cathode of varying work function to illustrate how space charge affects current characteristics. It is confirmed that initially current comes primarily from areas of low work function, but then saturates. There is an optimal temperature for electron-beam brightness, and cathodes with a fine-grained work-function structure yield a higher-quality beam.
M. Drong, T. Fördös, H.Y. Jaffrès, J. Peřina, Jr., K. Postava, P. Ciompa, J. Pištora, and H.-J. Drouhin
Phys. Rev. Applied 15, 014041 (2021) - Published 22 January, 2021
Putting a different spin on photonics: Spin-injected vertical-cavity surface-emitting lasers (Spin-VCSELs) with strong anisotropies are important in particular for ultrafast and terahertz applications, but the field is being held back in part because of lack of sufficiently predictive physical models. This study uses temporal coupled-mode theory with the transfer-matrix formalism to make progress by extending the spin-flip model. Additionally, the authors propose a spin-VCSEL with an anisotropic intracavity grating. This approach points to engineering solutions for ultrafast optical communication and compact terahertz sources.
Marc Martí-Sabaté and Dani Torrent
Phys. Rev. Applied 15, L011001 (2021) - Published 11 January, 2021
This work studies the propagation of mechanical waves through lattices that form moiré patterns. These structures are not periodic, and their analysis generally requires special methods, most of which are based on the theory of quasiperiodic infinite systems, and therefore are not suitable for finite manufactured structures. To attain a deeper understanding of the underlying physics of moiré patterns, the authors study these complex structures using multiple-scattering theory, which is more suitable for small samples. This study offers fresh perspective in the analysis of quasiperiodic materials in general, with special emphasis on twisted bilayers.
Xinzhong Chen, Richard Ren, and Mengkun Liu
Phys. Rev. Applied 15, 014001 (2021) - Published 4 January, 2021
T. Guillet, A. Marty, C. Vergnaud, F. Bonell, and M. Jamet
Phys. Rev. Applied 15, 014002 (2021) - Published 4 January, 2021
Reed Yalisove, Suk Hyun Sung, Peter Ercius, and Robert Hovden
Phys. Rev. Applied 15, 014003 (2021) - Published 5 January, 2021
A prime goal in science is to directly measure the complete three-dimensional (3D) arrangement of atoms in matter. Sampling limitations and the connection between lateral resolution and depth of focus have limited such measurements to the smallest specimens. Here the authors show that aberration-corrected scanning transmission electron tomography can offer dose-efficient 3D reconstruction that measures (up to a specified cutoff resolution) complete information for specimens of any size, with no sampling limit. The team presents analytic descriptions of resolution, sampling, object size, and dose in convergent-beam tomography, in direct analogy to the traditional Crowther-Klug criterion.
V.G. Lucivero, W. Lee, N. Dural, and M.V. Romalis
Phys. Rev. Applied 15, 014004 (2021) - Published 6 January, 2021
Bhaskarjyoti Sarma, Sunny Kumar, Amaresh Dalal, Dipankar N. Basu, and Dipankar Bandyopadhyay
Phys. Rev. Applied 15, 014005 (2021) - Published 6 January, 2021
Elisabeth A. Duijnstee, Vincent M. Le Corre, Michael B. Johnston, L. Jan Anton Koster, Jongchul Lim, and Henry J. Snaith
Phys. Rev. Applied 15, 014006 (2021) - Published 6 January, 2021
Michael E. Tobar, Ben T. McAllister, and Maxim Goryachev
Phys. Rev. Applied 15, 014007 (2021) - Published 6 January, 2021
Hang Yin, Ding-Yin Tan, Ming Hu, Shun Wang, Yan-Zheng Bai, Shu-Chao Wu, and Ze-Bing Zhou
Phys. Rev. Applied 15, 014008 (2021) - Published 7 January, 2021
Juan Song, Fengqing Yang, Zhiwei Guo, Xian Wu, Kejia Zhu, Jun Jiang, Yong Sun, Yunhui Li, Haitao Jiang, and Hong Chen
Phys. Rev. Applied 15, 014009 (2021) - Published 7 January, 2021
Chong Wang, Yangye Sun, Shenyang Huang, Qiaoxia Xing, Guowei Zhang, Chaoyu Song, Fanjie Wang, Yuangang Xie, Yuchen Lei, Zhengzong Sun, and Hugen Yan
Phys. Rev. Applied 15, 014010 (2021) - Published 7 January, 2021
M. Mobarak Hossain Polash and Daryoosh Vashaee
Phys. Rev. Applied 15, 014011 (2021) - Published 8 January, 2021
Erica Grant, Travis S. Humble, and Benjamin Stump
Phys. Rev. Applied 15, 014012 (2021) - Published 8 January, 2021
Zahra Nourbakhsh, Nicolas Tancogne-Dejean, Hamed Merdji, and Angel Rubio
Phys. Rev. Applied 15, 014013 (2021) - Published 8 January, 2021
Han Yin, Abinash Kumar, James M. LeBeau, and R. Jaramillo
Phys. Rev. Applied 15, 014014 (2021) - Published 8 January, 2021
Jing-jing Liu, Bin Liang, and Jian-chun Cheng
Phys. Rev. Applied 15, 014015 (2021) - Published 11 January, 2021
Guillermo Currás-Lorenzo, Lewis Wooltorton, and Mohsen Razavi
Phys. Rev. Applied 15, 014016 (2021) - Published 11 January, 2021
Krzysztof Grochot, Łukasz Karwacki, Stanisław Łazarski, Witold Skowroński, Jarosław Kanak, Wiesław Powroźnik, Piotr Kuświk, Mateusz Kowacz, Feliks Stobiecki, and Tomasz Stobiecki
Phys. Rev. Applied 15, 014017 (2021) - Published 11 January, 2021
N.K. Paul and J.S. Gomez-Diaz
Phys. Rev. Applied 15, 014018 (2021) - Published 11 January, 2021
Le-Meng Leng, Yue Shao, Pei-Yan Zhao, Guang-Fan Tao, Shi-Ning Zhu, and Wei Jiang
Phys. Rev. Applied 15, 014019 (2021) - Published 12 January, 2021
Yao Zhang, Guy Dubuis, Tane Butler, and Simon Granville
Phys. Rev. Applied 15, 014020 (2021) - Published 12 January, 2021
Jiaqing Huang, Yijie Mo, and Yao Yao
Phys. Rev. Applied 15, 014021 (2021) - Published 13 January, 2021
D. Psiachos and M.M. Sigalas
Phys. Rev. Applied 15, 014022 (2021) - Published 13 January, 2021
G.A.L. White, C.D. Hill, and L.C.L. Hollenberg
Phys. Rev. Applied 15, 014023 (2021) - Published 13 January, 2021
Nicholas J. Miller, Steven W. Shaw, and M.I. Dykman
Phys. Rev. Applied 15, 014024 (2021) - Published 13 January, 2021
Zhongming Gu, He Gao, Tuo Liu, Shanjun Liang, Shuowei An, Yong Li, and Jie Zhu
Phys. Rev. Applied 15, 014025 (2021) - Published 14 January, 2021
Minye Yang, Zhilu Ye, Mohamed Farhat, and Pai-Yen Chen
Phys. Rev. Applied 15, 014026 (2021) - Published 14 January, 2021
Shiying Shen, Qian Wu, Yan Liang, Baibiao Huang, Ying Dai, and Yandong Ma
Phys. Rev. Applied 15, 014027 (2021) - Published 15 January, 2021
Máté Farkas, Nayda Guerrero, Jaime Cariñe, Gustavo Cañas, and Gustavo Lima
Phys. Rev. Applied 15, 014028 (2021) - Published 15 January, 2021
Tameem Albash and Jeffrey Marshall
Phys. Rev. Applied 15, 014029 (2021) - Published 19 January, 2021
Fa Chen, Xu Ge, Wei Luo, Renhao Xing, Shiheng Liang, Xiaofei Yang, Long You, Rui Xiong, Yoshichika Otani, and Yue Zhang
Phys. Rev. Applied 15, 014030 (2021) - Published 19 January, 2021
Yaoming Chu, Pengcheng Yang, Musang Gong, Min Yu, Baiyi Yu, Martin B. Plenio, Alex Retzker, and Jianming Cai
Phys. Rev. Applied 15, 014031 (2021) - Published 19 January, 2021
Xin Wen, Kai Tan, Qian Deng, and Shengping Shen
Phys. Rev. Applied 15, 014032 (2021) - Published 19 January, 2021
Flexoelectricity, in which a dielectric material develops an electrical polarization in response to mechanical strain, is an important degree of freedom for designing actuators with simpler structure and higher performance. Its applications are usually limited to the nanoscale, though, due to the phenomenon’s inherent size dependence. This study presents an flexoelectret effect in silicone elastomers to overcome this limitation, which is due to the interplay of electrets and Maxwell stress. The approach here opens an avenue for applying macroscopic flexoelectricity in actuators and flexible electronics.
Manchao Zhang, Yi Xie, Jie Zhang, Weichen Wang, Chunwang Wu, Ting Chen, Wei Wu, and Pingxing Chen
Phys. Rev. Applied 15, 014033 (2021) - Published 20 January, 2021
A. Attiaoui, É. Bouthillier, G. Daligou, A. Kumar, S. Assali, and O. Moutanabbir
Phys. Rev. Applied 15, 014034 (2021) - Published 20 January, 2021
Chuanjie Hu and Huanyang Chen
Phys. Rev. Applied 15, 014035 (2021) - Published 20 January, 2021
Hamidreza Akbari, Wei-Hsiang Lin, Benjamin Vest, Pankaj K. Jha, and Harry A. Atwater
Phys. Rev. Applied 15, 014036 (2021) - Published 20 January, 2021
Zebin Huang, Peipei Wang, Junmin Liu, Wenjie Xiong, Yanliang He, Jiangnan Xiao, Huapeng Ye, Ying Li, Shuqing Chen, and Dianyuan Fan
Phys. Rev. Applied 15, 014037 (2021) - Published 21 January, 2021
O. Alves Santos, F. Feringa, K.S. Das, J. Ben Youssef, and B.J. van Wees
Phys. Rev. Applied 15, 014038 (2021) - Published 21 January, 2021
Felix M. Mayor, Wentao Jiang, Christopher J. Sarabalis, Timothy P. McKenna, Jeremy D. Witmer, and Amir H. Safavi-Naeini
Phys. Rev. Applied 15, 014039 (2021) - Published 21 January, 2021
Phononic integrated circuits that guide acoustic waves at wavelength scale offer great potential for devices in communications, sensing, and quantum technologies. Unfortunately, conventional phononic waveguides either are suspended, which prevents large-scale integration, or suffer from inefficient acoustic wave transduction. Surmounting these issues, this work implements unreleased-rib phononic circuits operating at 3.4 GHz with efficient, compact transducers in a thin-film platform of lithium niobate on sapphire. These circuits allow the authors to demonstrate mass sensing, high-quality resonators, and the characterization of low-power acoustic four-wave mixing.
Anna Sitek, Kristinn Torfason, Andrei Manolescu, and Ágúst Valfells
Phys. Rev. Applied 15, 014040 (2021) - Published 21 January, 2021
Thermionic cathodes are important in many electronic devices, due to their low cost and robust nature. Their transition from thermionic to space-charge-limited emission remains poorly understood, even though it is the regime in which they are normally operated. This study uses simulations of electron emission and propagation from a cathode of varying work function to illustrate how space charge affects current characteristics. It is confirmed that initially current comes primarily from areas of low work function, but then saturates. There is an optimal temperature for electron-beam brightness, and cathodes with a fine-grained work-function structure yield a higher-quality beam.
M. Drong, T. Fördös, H.Y. Jaffrès, J. Peřina, Jr., K. Postava, P. Ciompa, J. Pištora, and H.-J. Drouhin
Phys. Rev. Applied 15, 014041 (2021) - Published 22 January, 2021
Putting a different spin on photonics: Spin-injected vertical-cavity surface-emitting lasers (Spin-VCSELs) with strong anisotropies are important in particular for ultrafast and terahertz applications, but the field is being held back in part because of lack of sufficiently predictive physical models. This study uses temporal coupled-mode theory with the transfer-matrix formalism to make progress by extending the spin-flip model. Additionally, the authors propose a spin-VCSEL with an anisotropic intracavity grating. This approach points to engineering solutions for ultrafast optical communication and compact terahertz sources.
E.R. Cardozo de Oliveira, A. Naranjo, A. Pfenning, V. Lopez-Richard, G.E. Marques, L. Worschech, F. Hartmann, S. Höfling, and M.D. Teodoro
Phys. Rev. Applied 15, 014042 (2021) - Published 22 January, 2021
Evangelia Takou, Anna C. Tasolamprou, Odysseas Tsilipakos, Zacharias Viskadourakis, Maria Kafesaki, George Kenanakis, and Eleftherios N. Economou
Phys. Rev. Applied 15, 014043 (2021) - Published 25 January, 2021
Tomoya Igari, Masayoshi Nagao, Kazutaka Mitsuishi, Masahiro Sasaki, Yoichi Yamada, and Katsuhisa Murakami
Phys. Rev. Applied 15, 014044 (2021) - Published 25 January, 2021
Milena Capiglioni, Analia Zwick, Pablo Jiménez, and Gonzalo A. Álvarez
Phys. Rev. Applied 15, 014045 (2021) - Published 25 January, 2021
H. Li, A. Thayil, C. T. K. Lew, M. Filoche, B. C. Johnson, J. C. McCallum, S. Arscott, and A. C. H. Rowe
Phys. Rev. Applied 15, 014046 (2021) - Published 25 January, 2021
Víctor Calero, Raúl Fernández-Mateo, Hywel Morgan, Pablo García-Sánchez, and Antonio Ramos
Phys. Rev. Applied 15, 014047 (2021) - Published 26 January, 2021
Yujia Zhang, Xinzhong Chen, Derek Chen, Ziheng Yao, Suheng Xu, Patrick McArdle, M. Mumtaz Qazilbash, and Mengkun Liu
Phys. Rev. Applied 15, 014048 (2021) - Published 27 January, 2021
Zhiling Wang, Yukai Wu, Zenghui Bao, Yan Li, Cheng Ma, Haiyan Wang, Yipu Song, Hongyi Zhang, and Luming Duan
Phys. Rev. Applied 15, 014049 (2021) - Published 27 January, 2021
Charles W. Lewandowski, Tyler D. Knowles, Zachariah B. Etienne, and Brian D’Urso
Phys. Rev. Applied 15, 014050 (2021) - Published 27 January, 2021
Pawel Packo, Andrew N. Norris, and Dani Torrent
Phys. Rev. Applied 15, 014051 (2021) - Published 27 January, 2021
Chenbo Zhao, Zhizhi Zhang, Yi Li, Wei Zhang, John E. Pearson, Ralu Divan, Qingfang Liu, Valentine Novosad, Jianbo Wang, and Axel Hoffmann
Phys. Rev. Applied 15, 014052 (2021) - Published 27 January, 2021
David H. Meyer, Paul D. Kunz, and Kevin C. Cox
Phys. Rev. Applied 15, 014053 (2021) - Published 27 January, 2021
H. González, J. Arcenegui, F.J. García de Bollullos, J.R. Castrejón-Pita, and A.A. Castrejón-Pita
Phys. Rev. Applied 15, 014054 (2021) - Published 28 January, 2021
Ryan Thompson, Jeongchun Ryu, Gaeun Choi, Shutaro Karube, Makoto Kohda, Junsaku Nitta, and Byong-Guk Park
Phys. Rev. Applied 15, 014055 (2021) - Published 28 January, 2021
Gopal Niraula, Jose A. H. Coaquira, Fermin H. Aragon, Andris F. Bakuzis, Bianca M. G. Villar, Flavio Garcia, Diego Muraca, Giorgio Zoppellaro, Ahmad I. Ayesh, and Surender K. Sharma
Phys. Rev. Applied 15, 014056 (2021) - Published 28 January, 2021
Bogdan Ungureanu, Mehul P. Makwana, Richard V. Craster, and Sébastien Guenneau
Phys. Rev. Applied 15, 014057 (2021) - Published 28 January, 2021
Shuaifeng Li and Jinkyu Yang
Phys. Rev. Applied 15, 014058 (2021) - Published 28 January, 2021
Tianyue Li, Xingyi Li, Shaohui Yan, Xiaohao Xu, Shuming Wang, Baoli Yao, Zhenlin Wang, and Shining Zhu
Phys. Rev. Applied 15, 014059 (2021) - Published 29 January, 2021
Gabriele Riccardi, Cristian Antonelli, Daniel E. Jones, and Michael Brodsky
Phys. Rev. Applied 15, 014060 (2021) - Published 29 January, 2021
Gianluca Gubbiotti, Alexandr Sadovnikov, Evgeny Beginin, Sergey Nikitov, Danny Wan, Anshul Gupta, Shreya Kundu, Giacomo Talmelli, Robert Carpenter, Inge Asselberghs, Iuliana P. Radu, Christoph Adelmann, and Florin Ciubotaru
Phys. Rev. Applied 15, 014061 (2021) - Published 29 January, 2021
Orestis Christogeorgos, Haoyang Zhang, Qiao Cheng, and Yang Hao
Phys. Rev. Applied 15, 014062 (2021) - Published 29 January, 2021
Joris Doumouro, Elodie Perros, Alix Dodu, Nancy Rahbany, Dominique Leprat, Valentina Krachmalnicoff, Rémi Carminati, Wilfrid Poirier, and Yannick De Wilde
Phys. Rev. Applied 15, 014063 (2021) - Published 29 January, 2021
Tianshu Li, Xingang Zhao, Dongwen Yang, Mao-Hua Du, and Lijun Zhang
Phys. Rev. Applied 15, 019901 (2021) - Published 26 January, 2021
