Zobrazeno 1 - 10
of 532
pro vyhledávání: '"Lake, Roger"'
Autor:
Xu, Da, Liu, Qiushi, Liang, Boqun, Yu, Ning, Ma, Xuezhi, Xu, Yaodong, Taniguchi, Takashi, Lake, Roger K., Yan, Ruoxue, Liu, Ming
Integrated photodetectors are crucial for their high speed, sensitivity, and efficient power consumption. In these devices, photocurrent generation is primarily attributed to the photovoltaic (PV) effect, driven by electron hole separations, and the
Externí odkaz:
http://arxiv.org/abs/2410.13052
Autor:
Debnath, Topojit, Soundararaj, Shri Hari, Kwon, Sohee, Balandin, Alexander A., Lake, Roger K.
The magnonic excitations of a dimerized, one-dimensional, antiferromagnetic chain can be trivial or topological depending on the signs and magnitudes of the alternating exchange couplings and the anisotropy. The topological phase that occurs when the
Externí odkaz:
http://arxiv.org/abs/2410.09354
Cr$_2$Te$_3$ is a ferromagnetic, quasi-two-dimensional layered material with perpendicular magnetic anisotropy, strong spin-orbit coupling, and non-trivial band topology. The non-trivial topology results in an intrinsic anomalous Hall conductivity (A
Externí odkaz:
http://arxiv.org/abs/2404.02315
Autor:
Nataj, Zahra Ebrahim, Kargar, Fariborz, Krylyuk, Sergiy, Debnath, Topojit, Taheri, Maedeh, Ghosh, Subhajit, Zhang, Huairuo, Davydov, Albert V., Lake, Roger K., Balandin, Alexander A.
We report the results of polarization-dependent Raman spectroscopy of phonon states in single-crystalline quasi-one-dimensional NbTe$_4$ and TaTe$_4$ van der Waals materials. The measurements were conducted in the wide temperature range from 80 K to
Externí odkaz:
http://arxiv.org/abs/2311.02724
Autor:
Brown, Jonas O., Taheri, Maedeh, Kargar, Fariborz, Salgado, Ruben, Geremew, Tekwam, Rumyantsev, Sergey, Lake, Roger K., Balandin, Alexander A.
We investigated the temperature dependence of the conductance fluctuations in thin films of the quasi-two-dimensional 1T-TaS$_2$ van der Waals material. The conductance fluctuations, determined from the derivative current-voltage characteristics of t
Externí odkaz:
http://arxiv.org/abs/2307.08047
We theoretically show that the carrier transport in monolayer Fe3GeTe2 experiences a transition between anomalous Hall effect and spin Hall effect when the spin polarization of disorders switches between out-of-plane and in-plane. These Hall effects
Externí odkaz:
http://arxiv.org/abs/2305.09743
Publikováno v:
Physical Review MATERIALS 6, 084004 (2022)
Two-dimensional chromium ditelluride (CrTe2) is a promising ferromagnetic layered material that exhibits long-range ferromagnetic ordering in the monolayer limit. The formation energies of the different possible structural phases (1T, 1H, 2H) calcula
Externí odkaz:
http://arxiv.org/abs/2305.00168
Autor:
Eckberg, Christopher, Qiu, Gang, Qu, Tao, Kwon, Sohee, Liu, Yuhang, Tai, Lixuan, Graf, David, Chong, Su Kong, Zhang, Peng, Wong, Kin L., Lake, Roger K., Neupane, Mahesh R., Wang, Kang L.
To date, the most widely-studied quantum anomalous Hall insulator (QAHI) platform is achieved by dilute doping of magnetic ions into thin films of the alloyed tetradymite topological insulator (TI) (Bi$_{1-x}$Sb$_x$)$_2$Te$_3$ (BST). In these films,
Externí odkaz:
http://arxiv.org/abs/2301.03078
Autor:
Kargar, Fariborz, Barani, Zahra, Sesing, Nicholas R., Mai, Thuc T., Debnath, Topojit, Zhang, Huairuo, Liu, Yuhang, Zhu, Yanbing, Ghosh, Subhajit, Biacchi, Adam J., da Jornada, Felipe H., Bartels, Ludwig, Adel, Tehseen, Walker, Angela R. Hight, Davydov, Albert V., Salguero, Tina T., Lake, Roger K., Balandin, Alexander A.
We report on the temperature evolution of the polarization-dependent Raman spectrum of exfoliated MoI$_3$, a van der Waals material with a "true one-dimensional" crystal structure that can be exfoliated to individual atomic chains. The temperature ev
Externí odkaz:
http://arxiv.org/abs/2210.05081
Autor:
Chi, Hang, Ou, Yunbo, Eldred, Tim B., Gao, Wenpei, Kwon, Sohee, Murray, Joseph, Dreyer, Michael, Butera, Robert E., Foucher, Alexandre C., Ambaye, Haile, Keum, Jong, Greenberg, Alice T., Liu, Yuhang, Neupane, Mahesh R., de Coster, George J., Vail, Owen A., Taylor, Patrick J., Folkes, Patrick A., Rong, Charles, Yin, Gen, Lake, Roger K., Ross, Frances M., Lauter, Valeria, Heiman, Don, Moodera, Jagadeesh S.
Publikováno v:
Nature Communications 14, 3222 (2023)
Magnetic transition metal chalcogenides form an emerging platform for exploring spin-orbit driven Berry phase phenomena owing to the nontrivial interplay between topology and magnetism. Here we show that the anomalous Hall effect in pristine Cr2Te3 t
Externí odkaz:
http://arxiv.org/abs/2207.02318