Short-range order parameter expansions for simple configurational energetics
Flynn Walsh
Phys. Rev. Materials 8, L100801 (2024) - Published 3 October, 2024
Jens Brede, Mahasweta Bagchi, Adrian Greichgauer, Anjana Uday, Andrea Bliesener, Gertjan Lippertz, Roozbeh Yazdanpanah, Alexey Taskin, and Yoichi Ando
Phys. Rev. Materials 8, 104202 (2024) - Published 29 October, 2024
Compensation doping is a successful strategy to realize bulk-insulating topological insulators, but it comes at the cost of large chemical-potential fluctuations. Here, STM is used to map these fluctuations in (BiSb)Te thin films with varying Sb-concentration x. The fluctuation amplitude is found to be 5 – 14 meV in quasi-bulk-insulating films, but it increases to 30 – 40 meV in highly bulk-insulating films. Landau-level spectroscopy under perpendicular magnetic fields allows for identifying the Dirac point. At x ≈ 0.65, the Fermi level is found to lie within 10 meV from the Dirac point and yet the potential fluctuations are relatively modest at 14 meV.
Xin-Yue Zhang, Thomas K. M. Graham, Hyeonhu Bae, Yu-Xuan Wang, Nazar Delegan, Jonghoon Ahn, Zhi-Cheng Wang, Jakub Regner, Kenji Watanabe, Takashi Taniguchi, Minkyung Jung, Zdeněk Sofer, Fazel Tafti, David D. Awschalom, F. Joseph Heremans, Binghai Yan, and Brian B. Zhou
Phys. Rev. Materials 8, 104402 (2024) - Published 1 October, 2024
Optically controlled magnetism offers prospects for high efficiency information processing, but such investigations are often restricted to magnets with special readout properties. Here, the authors utilize nitrogen-vacancy (NV) center magnetometry to directly image the transient, photoinduced stray fields in a material proximal to the NV center. They discover that the antiferromagnetic layer magnetization in atomically thin CrCl is enhanced by exciton pumping, which they attribute to a charge transfer between water-related surface adsorbates and the spin-polarized conduction band during nonradiative exciton recombination. Their work demonstrates how defects can enhance 2D magnetism and broadens the study of photoinduced magnetic effects.
Thom J. Snoeren, Kimo Pressler, and Daniel R. Gamelin
Phys. Rev. Materials 8, 104410 (2024) - Published 23 October, 2024
The use of impurities to generate new properties in magnetic CrX compounds remains surprisingly underexplored. The authors report the magneto-optical properties of Yb-doped CrBr, in which Yb serves as a spin-bearing optical point defect. Their data reveal that ground- and excited-state Yb spin degeneracies are spontaneously lifted through strong magnetic exchange with neighboring Cr ions, such that individual Yb spin transitions are resolved even at zero external field, and Yb spins are easily manipulated via CrBr magnetization. The large Yb spin splittings present unique opportunities for optical spin manipulation of point defects and highlight the use of impurities to add spin-photonic functionalities to this classic 2D van der Waals magnet.
Wojciech R. Pudelko, Huanlong Liu, Francesco Petocchi, Hang Li, Eduardo Bonini Guedes, Julia Küspert, Karin von Arx, Qisi Wang, Ron Cohn Wagner, Craig M. Polley, Mats Leandersson, Jacek Osiecki, Balasubramanian Thiagarajan, Milan Radović, Philipp Werner, Andreas Schilling, Johan Chang, and Nicholas C. Plumb
Phys. Rev. Materials 8, 104802 (2024) - Published 25 October, 2024
Interfacing different layer types of 2D materials is a promising route for developing quantum devices and exploring the fundamental physics of complex matter. In this work, the authors employ angle-resolved photoemission spectroscopy to elucidate the factors behind a strong enhancement of superconductivity that occurs when insulating structural layers of the compound TaS are inserted between layers of its superconducting polymorph, forming new bulk structures, such as the polytype. Using a novel synthesis approach — vanadium intercalation — they demonstrate how the intercalant acts as a chemical knob, enabling precise manipulation of the material’s structural configurations. From detailed analysis of the spectral signatures of many-body interactions, the study reveals a substantial and highly momentum-dependent boost in electron-phonon coupling in the phase, which is found to account for the elevated transition temperature.
Yechan Noh and Alex Smolyanitsky
Phys. Rev. Materials 8, L103001 (2024) - Published 3 October, 2024
Aqueous ions permeate subnanoscale pores in two-dimensional materials by leaping local energy barriers, not through simple diffusion. Depending on the local ion-pore and ion-solvent interactions, seemingly non-intuitive behaviors can arise. The authors combine molecular dynamics simulations, quantum-chemical calculations, and kinetic theory to demonstrate that electrostatically driven flow of aqueous alkali cations through subnanoscale pores can be by stretching the two-dimensional membrane hosting the pores. More specifically, they show that potassium transport significantly decreases in response to moderate membrane strain, while sodium transport increases. This behavior is attributed to a clearly observed strain-induced repulsive-to-attractive transition in the ion-pore electrostatic interactions.
Flynn Walsh
Phys. Rev. Materials 8, L100801 (2024) - Published 3 October, 2024
Anubhab Haldar, Quentin Clark, Marios Zacharias, Feliciano Giustino, and Sahar Sharifzadeh
Phys. Rev. Materials 8, L101001 (2024) - Published 11 October, 2024
Xin Li, Haochen Wang, Yuquan Zhou, Song Luo, Hang Zhou, Yaofeng Zhu, Hongming Zhang, Long Zhang, and Zhanghai Chen
Phys. Rev. Materials 8, L101002 (2024) - Published 24 October, 2024
Giovanni Alberto Ummarino and Alessio Zaccone
Phys. Rev. Materials 8, L101801 (2024) - Published 15 October, 2024
Yechan Noh and Alex Smolyanitsky
Phys. Rev. Materials 8, L103001 (2024) - Published 3 October, 2024
Aqueous ions permeate subnanoscale pores in two-dimensional materials by leaping local energy barriers, not through simple diffusion. Depending on the local ion-pore and ion-solvent interactions, seemingly non-intuitive behaviors can arise. The authors combine molecular dynamics simulations, quantum-chemical calculations, and kinetic theory to demonstrate that electrostatically driven flow of aqueous alkali cations through subnanoscale pores can be by stretching the two-dimensional membrane hosting the pores. More specifically, they show that potassium transport significantly decreases in response to moderate membrane strain, while sodium transport increases. This behavior is attributed to a clearly observed strain-induced repulsive-to-attractive transition in the ion-pore electrostatic interactions.
Bärbel Krause, Clarisse Furgeaud, Cédric Mastail, Anny Michel, Salomé Parent, Gregory Abadias, Andrea Resta, Alessandro Coati, Yves Garreau, and Alina Vlad
Phys. Rev. Materials 8, 103401 (2024) - Published 1 October, 2024
Chenxing Luo (罗晨星), Yang Sun (孙阳), and Renata M. Wentzcovitch
Phys. Rev. Materials 8, 103601 (2024) - Published 1 October, 2024
William D. Neilson, Conor O. T. Galvin, Shen J. Dillon, Michael W. D. Cooper, and David A. Andersson
Phys. Rev. Materials 8, 103602 (2024) - Published 7 October, 2024
Morgan R. Jones, Pulkit Garg, and Irene J. Beyerlein
Phys. Rev. Materials 8, 103603 (2024) - Published 7 October, 2024
Shiqiang Hao, Richard P. Oleksak, Ömer N. Doğan, and Michael C. Gao
Phys. Rev. Materials 8, 103604 (2024) - Published 8 October, 2024
Zuoyong Zhang and Chuang Deng
Phys. Rev. Materials 8, 103605 (2024) - Published 18 October, 2024
Abhijith S. Parackal, Rhys E. A. Goodall, Felix A. Faber, and Rickard Armiento
Phys. Rev. Materials 8, 103801 (2024) - Published 2 October, 2024
Justin Kerr, Nathan Bieberdorf, Laurent Capolungo, and Mark Asta
Phys. Rev. Materials 8, 103802 (2024) - Published 3 October, 2024
Derick E. Ober and Anton Van der Ven
Phys. Rev. Materials 8, 103803 (2024) - Published 11 October, 2024
Xinjian Ouyang, Zhilong Wang, Xiao Jie, Feng Zhang, Yanxing Zhang, Laijun Liu, and Dawei Wang
Phys. Rev. Materials 8, 103804 (2024) - Published 11 October, 2024
M. Uchida, T. Yokoi, Y. Ogura, and K. Matsunaga
Phys. Rev. Materials 8, 103805 (2024) - Published 21 October, 2024
Pablo Vezzoni Vicente, Tobias Weiss, Dennis Meier, Wenchao Zhao, Birce Sena Tömekçe, Marc G. Cuxart, Benedikt P. Klein, David A. Duncan, Tien-Lin Lee, Anthoula C. Papageorgiou, Matthias Muntwiler, Ari Paavo Seitsonen, Willi Auwärter, Peter Feulner, Johannes V. Barth, and Francesco Allegretti
Phys. Rev. Materials 8, 104001 (2024) - Published 1 October, 2024
S. K. Mkhonta, Zhi-Feng Huang, and K. R. Elder
Phys. Rev. Materials 8, 104002 (2024) - Published 2 October, 2024
K. R. Elder, Zhi-Feng Huang, and T. Ala-Nissila
Phys. Rev. Materials 8, 104003 (2024) - Published 2 October, 2024
B. R. M. Smith, Y. Fujisawa, P. Wu, T. Nakamura, N. Tomoda, S. Kuniyoshi, D. Ueta, R. Kobayashi, R. Okuma, K. Arai, K. Kuroda, C.-H. Hsu, G. Chang, C.-Y. Huang, H. Lin, Z. Y. Wang, T. Kondo, and Y. Okada
Phys. Rev. Materials 8, 104004 (2024) - Published 9 October, 2024
Rubel Mozumder, Johannes Wasmer, David Antognini Silva, Stefan Blügel, and Philipp Rüßmann
Phys. Rev. Materials 8, 104201 (2024) - Published 17 October, 2024
Jens Brede, Mahasweta Bagchi, Adrian Greichgauer, Anjana Uday, Andrea Bliesener, Gertjan Lippertz, Roozbeh Yazdanpanah, Alexey Taskin, and Yoichi Ando
Phys. Rev. Materials 8, 104202 (2024) - Published 29 October, 2024
Compensation doping is a successful strategy to realize bulk-insulating topological insulators, but it comes at the cost of large chemical-potential fluctuations. Here, STM is used to map these fluctuations in (BiSb)Te thin films with varying Sb-concentration x. The fluctuation amplitude is found to be 5 – 14 meV in quasi-bulk-insulating films, but it increases to 30 – 40 meV in highly bulk-insulating films. Landau-level spectroscopy under perpendicular magnetic fields allows for identifying the Dirac point. At x ≈ 0.65, the Fermi level is found to lie within 10 meV from the Dirac point and yet the potential fluctuations are relatively modest at 14 meV.
X. T. Deng, D. Y. Yan, C. X. Wang, C. W. Zhang, Y. Li, Hai L. Feng, and Y. G. Shi
Phys. Rev. Materials 8, 104401 (2024) - Published 1 October, 2024
Xin-Yue Zhang, Thomas K. M. Graham, Hyeonhu Bae, Yu-Xuan Wang, Nazar Delegan, Jonghoon Ahn, Zhi-Cheng Wang, Jakub Regner, Kenji Watanabe, Takashi Taniguchi, Minkyung Jung, Zdeněk Sofer, Fazel Tafti, David D. Awschalom, F. Joseph Heremans, Binghai Yan, and Brian B. Zhou
Phys. Rev. Materials 8, 104402 (2024) - Published 1 October, 2024
Optically controlled magnetism offers prospects for high efficiency information processing, but such investigations are often restricted to magnets with special readout properties. Here, the authors utilize nitrogen-vacancy (NV) center magnetometry to directly image the transient, photoinduced stray fields in a material proximal to the NV center. They discover that the antiferromagnetic layer magnetization in atomically thin CrCl is enhanced by exciton pumping, which they attribute to a charge transfer between water-related surface adsorbates and the spin-polarized conduction band during nonradiative exciton recombination. Their work demonstrates how defects can enhance 2D magnetism and broadens the study of photoinduced magnetic effects.
Ying Zhou, Haoshen Ye, Junting Zhang, and Shuai Dong
Phys. Rev. Materials 8, 104403 (2024) - Published 8 October, 2024
Timothy Liao, Weiyi Xia, Masahiro Sakurai, Chao Zhang, Huaijun Sun, Renhai Wang, Kai-Ming Ho, Cai-Zhuang Wang, and James R. Chelikowsky
Phys. Rev. Materials 8, 104404 (2024) - Published 11 October, 2024
Jiangchao Qian, Yi Li, Zhihao Jiang, Robert Busch, Hsu-Chih Ni, Tzu-Hsiang Lo, Axel Hoffmann, André Schleife, and Jian-Min Zuo
Phys. Rev. Materials 8, 104405 (2024) - Published 11 October, 2024
Sukriti Mantri, Sergei Prokhorenko, Yousra Nahas, and Laurent Bellaiche
Phys. Rev. Materials 8, 104406 (2024) - Published 15 October, 2024
Nayana Devaraj, Anumita Bose, and Awadhesh Narayan
Phys. Rev. Materials 8, 104407 (2024) - Published 17 October, 2024
Emma Zappala, Timothy A. Elmslie, Gerald D. Morris, Mark W. Meisel, Rémi Dingreville, James J. Hamlin, and Benjamin A. Frandsen
Phys. Rev. Materials 8, 104408 (2024) - Published 21 October, 2024
Kodchakorn Simalaotao, Yoshio Miura, and Yuya Sakuraba
Phys. Rev. Materials 8, 104409 (2024) - Published 23 October, 2024
Thom J. Snoeren, Kimo Pressler, and Daniel R. Gamelin
Phys. Rev. Materials 8, 104410 (2024) - Published 23 October, 2024
The use of impurities to generate new properties in magnetic CrX compounds remains surprisingly underexplored. The authors report the magneto-optical properties of Yb-doped CrBr, in which Yb serves as a spin-bearing optical point defect. Their data reveal that ground- and excited-state Yb spin degeneracies are spontaneously lifted through strong magnetic exchange with neighboring Cr ions, such that individual Yb spin transitions are resolved even at zero external field, and Yb spins are easily manipulated via CrBr magnetization. The large Yb spin splittings present unique opportunities for optical spin manipulation of point defects and highlight the use of impurities to add spin-photonic functionalities to this classic 2D van der Waals magnet.
Sita Dugu, Rebecca W. Smaha, Shaham Quadir, Andrew Treglia, Julia Martin, Shaun O'Donnell, Sharad Mahatara, Glenn Teeter, Stephan Lany, James R. Neilson, and Sage R. Bauers
Phys. Rev. Materials 8, 104411 (2024) - Published 24 October, 2024
Haige Tan, Yan Feng, Xiang Ma, Changlong Wang, Ruimin Li, Junjie Wu, Lizhen Huang, Yalin Lu, and Bin Xiang
Phys. Rev. Materials 8, 104412 (2024) - Published 25 October, 2024
Dongxue Du, Chenyu Zhang, Jingrui Wei, Yujia Teng, Konrad T. Genser, Paul M. Voyles, Karin M. Rabe, and Jason K. Kawasaki
Phys. Rev. Materials 8, 104413 (2024) - Published 29 October, 2024
Haoyang Ni, William R. Meier, Hu Miao, Andrew F. May, Brian C. Sales, Jian-Min Zuo, and Miaofang Chi
Phys. Rev. Materials 8, 104414 (2024) - Published 30 October, 2024
Advances in cryogenic four-dimensional scanning transmission electron microscopy (4D-STEM) enables the capture of local convergent-beam electron diffraction patterns at cryogenic temperatures for collocated mapping of charge density wave (CDW) microstructure, polarity and atomic displacements. Using this newfound capability, the authors reveal the nature of long-wavelength incommensurate CDWs in EuAl in the form of periodic symmetry fluctuations, resulted from two out-of-phase sinusoidal, transverse, atomic displacement modes on the Eu and Al sublattices. The results demonstrate cryogenic 4D-STEM as a powerful method for probing atomic modulations and local symmetry.
Agnieszka Anna Corley-Wiciak, Omar Concepción, Marvin Hartwig Zoellner, Gianfranco Sfuncia, Florian Bärwolf, Giuseppe Nicotra, Detlev Grützmacher, Dan Buca, Giovanni Capellini, and Davide Spirito
Phys. Rev. Materials 8, 104601 (2024) - Published 4 October, 2024
Benjamin Hatanpää and Austin J. Minnich
Phys. Rev. Materials 8, 104602 (2024) - Published 8 October, 2024
Luigi Ranalli, Carla Verdi, Marios Zacharias, Jacky Even, Feliciano Giustino, and Cesare Franchini
Phys. Rev. Materials 8, 104603 (2024) - Published 9 October, 2024
Jasmine K. Hinton, Dylan Durkee, Melanie White, Nathan Dasenbrock-Gammon, G. Alexander Smith, Elliot Snider, Dean Smith, Christian Childs, Keith V. Lawler, and Ashkan Salamat
Phys. Rev. Materials 8, 104604 (2024) - Published 16 October, 2024
Priya Kaith, Parul Garg, and Ashok Bera
Phys. Rev. Materials 8, 104605 (2024) - Published 21 October, 2024
G. A. Bobkov, K. A. Bokai, M. M. Otrokov, A. M. Bobkov, and I. V. Bobkova
Phys. Rev. Materials 8, 104801 (2024) - Published 15 October, 2024
Wojciech R. Pudelko, Huanlong Liu, Francesco Petocchi, Hang Li, Eduardo Bonini Guedes, Julia Küspert, Karin von Arx, Qisi Wang, Ron Cohn Wagner, Craig M. Polley, Mats Leandersson, Jacek Osiecki, Balasubramanian Thiagarajan, Milan Radović, Philipp Werner, Andreas Schilling, Johan Chang, and Nicholas C. Plumb
Phys. Rev. Materials 8, 104802 (2024) - Published 25 October, 2024
Interfacing different layer types of 2D materials is a promising route for developing quantum devices and exploring the fundamental physics of complex matter. In this work, the authors employ angle-resolved photoemission spectroscopy to elucidate the factors behind a strong enhancement of superconductivity that occurs when insulating structural layers of the compound TaS are inserted between layers of its superconducting polymorph, forming new bulk structures, such as the polytype. Using a novel synthesis approach — vanadium intercalation — they demonstrate how the intercalant acts as a chemical knob, enabling precise manipulation of the material’s structural configurations. From detailed analysis of the spectral signatures of many-body interactions, the study reveals a substantial and highly momentum-dependent boost in electron-phonon coupling in the phase, which is found to account for the elevated transition temperature.
Wanyin Zhao, Minghui Gu, Dongdong Xiao, Qian Li, Xiaoran Liu, Kui Jin, Haizhong Guo, Meng Meng, and Jiandong Guo
Phys. Rev. Materials 8, 105001 (2024) - Published 15 October, 2024
James P. Darby, Angela F. Harper, Joseph R. Nelson, and Andrew J. Morris
Phys. Rev. Materials 8, 105002 (2024) - Published 18 October, 2024
T. M. Lawrie, T. A. Starkey, G. Tanner, D. B. Moore, P. Savage, and G. J. Chaplain
Phys. Rev. Materials 8, 105201 (2024) - Published 25 October, 2024
Francisca Sagredo, Stephen E. Gant, Guy Ohad, Jonah B. Haber, Marina R. Filip, Leeor Kronik, and Jeffrey B. Neaton
Phys. Rev. Materials 8, 105401 (2024) - Published 18 October, 2024
Xiumei Kang, Hongbin Lin, Guigui Xu, Jianming Tao, Yue Chen, Kehua Zhong, Jian-Min Zhang, and Zhigao Huang
Phys. Rev. Materials 8, 105402 (2024) - Published 21 October, 2024
Sanchi Monga, Manjari Jain, Claudia Draxl, and Saswata Bhattacharya
Phys. Rev. Materials 8, 105403 (2024) - Published 28 October, 2024
Lucas H. P. Cunha, Aldo Spatafora-Salazar, Dana M. Lobmeyer, Kedar Joshi, Fred C. MacKintosh, and Sibani Lisa Biswal
Phys. Rev. Materials 8, 105601 (2024) - Published 22 October, 2024
Jiayu Zhang and Qiyun Tang
Phys. Rev. Materials 8, 105602 (2024) - Published 24 October, 2024
M. Lowe, A. Al-Mahboob, D. Ivarsson, M. Armbrüster, J. Ardini, G. Held, F. Maccherozzi, A. Bayer, V. Fournée, J. Ledieu, J. T. Sadowski, R. McGrath, and H. R. Sharma
Phys. Rev. Materials 8, 105801 (2024) - Published 15 October, 2024
Elliot Perviz, Antonio Cammarata, and Tomas Polcar
Phys. Rev. Materials 8, 106001 (2024) - Published 22 October, 2024
Louis Alaerts, Yihuang Xiong, Sinéad Griffin, and Geoffroy Hautier
Phys. Rev. Materials 8, 106201 (2024) - Published 1 October, 2024