Zobrazeno 1 - 10
of 368
pro vyhledávání: '"Lee, Wei‐Cheng"'
Moir\'e engineering in two-dimensional van der Waals bilayer crystals has emerged as a flexible platform for controlling strongly correlated electron systems. The competition between valleys for the band extremum energy position in the parent layers
Externí odkaz:
http://arxiv.org/abs/2310.17824
Autor:
Kar, Uddipta, Lu, Elisha Cho-Hao, Singh, Akhilesh Kr., Reddy, P. V. Sreenivasa, Han, Youngjoon, Li, Xinwei, Cheng, Cheng-Tung, Yang, Song, Lin, Chun-Yen, Cheng, I-Chun, Hsu, Chia-Hung, Hsieh, D., Lee, Wei-Cheng, Guo, Guang-Yu, Lee, Wei-Li
Publikováno v:
Phys. Rev. X 14, 011022 (2024)
The identification of distinct charge transport features, deriving from nontrivial bulk band and surface states, has been a challenging subject in the field of topological systems. In topological Dirac and Weyl semimetals, nontrivial conical bands wi
Externí odkaz:
http://arxiv.org/abs/2307.04482
Autor:
Olin, Sam, Lee, Wei-Cheng
Recently, Floquet systems have attracted a great deal of interest as they offer unprecedented ability to engineer topological states through the tuning of an external time-periodic drive. Consequentially, seeking new driving protocols that allow for
Externí odkaz:
http://arxiv.org/abs/2210.08525
Autor:
Gong, Mingda, Sar, Divyanshi, Friedman, Joel, Kaczorowski, Dariusz, Razek, S. Abdel, Lee, Wei-Cheng, Aynajian, Pegor
Gapping of Dirac surface states through time reversal symmetry breaking may realize the axion insulator state in condensed matter. Despite tremendous efforts, only a few material systems fall in this category of intrinsic magnetic topological insulat
Externí odkaz:
http://arxiv.org/abs/2209.09972
Publikováno v:
Adv. Quantum Technol. 2022, 2200067
Recently the memristive electrical transport properties in NbO$_2$ have attracted much attention for their promising application to the neuromorphic computation. At the center of debates is whether the metal-to-insulator transition (MIT) originates f
Externí odkaz:
http://arxiv.org/abs/2207.02682
Autor:
Srivastava, Sangeeta, Olin, Samuel, Podolskiy, Viktor, Karpatne, Anuj, Lee, Wei-Cheng, Arora, Anish
Given their ability to effectively learn non-linear mappings and perform fast inference, deep neural networks (NNs) have been proposed as a viable alternative to traditional simulation-driven approaches for solving high-dimensional eigenvalue equatio
Externí odkaz:
http://arxiv.org/abs/2202.05994
Autor:
Kar, Uddipta, Singh, Akhilesh Kr., Hsu, Yu-Te, Lin, Chih-Yu, Das, Bipul, Cheng, Cheng-Tung, Berben, M., Yang, Song, Lin, Chun-Yen, Hsu, Chia-Hung, Wiedmann, S., Lee, Wei-Cheng, Lee, Wei-Li
Publikováno v:
npj Quantum Mater. 8, 8 (2023)
Quantum oscillations in resistivity and magnetization at high magnetic fields are a macroscopic fingerprint of the energy quantization due to the cyclotron motion of quasiparticles. In a thin Weyl semimetal, a unique thickness dependent Weyl-orbit qu
Externí odkaz:
http://arxiv.org/abs/2112.13331
Autor:
Ghosh, Abantika, Elhamod, Mohannad, Bu, Jie, Lee, Wei-Cheng, Karpatne, Anuj, Podolskiy, Viktor A
We demonstrate that embedding physics-driven constraints into machine learning process can dramatically improve accuracy and generalizability of the resulting model. Physics-informed learning is illustrated on the example of analysis of optical modes
Externí odkaz:
http://arxiv.org/abs/2112.07625
Autor:
Wahila, Matthew J., Quackenbush, Nicholas F., Sadowski, Jerzy T., Krisponeit, Jon-Olaf, Flege, Jan Ingo, Tran, Richard, Ong, Shyue Ping, Schlueter, Christoph, Lee, Tien-Lin, Holtz, Megan E., Muller, David A., Paik, Hanjong, Schlom, Darrell G., Lee, Wei-Cheng, Piper, Louis F. J.
Transition metal oxides such as vanadium dioxide (VO$_2$), niobium dioxide (NbO$_2$), and titanium sesquioxide (Ti$_2$O$_3$) are known to undergo a temperature-dependent metal-insulator transition (MIT) in conjunction with a structural transition wit
Externí odkaz:
http://arxiv.org/abs/2012.05306
Autor:
Mondal, Wasim Raja, Evlyukhin, Egor, Howard, Sebastian A., Paez, Galo J., Paik, Hanjong, Schlom, Darrell G., Piper, Louis F J, Lee, Wei-Cheng
Publikováno v:
Phys. Rev. B 103, 214107 (2021)
We investigate the vibrational properties of VO2, particularly the low temperature M1 phase by first-principles calculations using the density functional theory as well as Raman spectroscopy. We perform the structural optimization using SCAN meta-GGA
Externí odkaz:
http://arxiv.org/abs/2008.08725