Zobrazeno 1 - 10
of 691
pro vyhledávání: '"Cheong, Sang‐Wook"'
Autor:
Cheong, Sang-Wook, Huang, Fei-Ting
Altermagnets are defined as magnetic states with fully compensated spin angular momenta (spins) and broken PT (P: parity, T: time reversal, PT: parity times time reversal) symmetry. We classify three kinds of altermagnets: Type-I: broken T symmetry a
Externí odkaz:
http://arxiv.org/abs/2409.20456
Autor:
Gao, Bin, Chen, Tong, Liu, Chunxiao, Klemm, Mason L., Zhang, Shu, Ma, Zhen, Xu, Xianghan, Won, Choongjae, McCandless, Gregory T., Murai, Naoki, Ohira-Kawamura, Seiko, Moxim, Stephen J., Ryan, Jason T., Huang, Xiaozhou, Wang, Xiaoping, Chan, Julia Y., Cheong, Sang-Wook, Tchernyshyov, Oleg, Balents, Leon, Dai, Pengcheng
In magnetically ordered insulators, elementary quasiparticles manifest as spin waves - collective motions of localized magnetic moments propagating through the lattice - observed via inelastic neutron scattering. In effective spin-1/2 systems where g
Externí odkaz:
http://arxiv.org/abs/2408.15957
Autor:
Ritschel, Tobias, Stahl, Quirin, Kusch, Maximilian, Trinckauf, Jan, Garbarino, Gaston, Svitlyk, Volodymyr, Mezouar, Mohamed, Yang, Junjie, Cheong, Sang-Wook, Geck, Jochen
Doped IrTe2 is considered a platform for topological superconductivity and therefore receives currently a lot of interest. In addition, the superconductivity in these materials exists in close vicinity to electronic order and the formation of molecul
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A89427
https://tud.qucosa.de/api/qucosa%3A89427/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A89427/attachment/ATT-0/
Autor:
Xiong, Junlin, Xie, Jiao, Cheng, Bin, Dai, Yudi, Cui, Xinyu, Wang, Lizheng, Liu, Zenglin, Zhou, Ji, Wang, Naizhou, Xu, Xianghan, Chen, Xianhui, Cheong, Sang-Wook, Liang, Shi-Jun, Miao, Feng
Publikováno v:
Nature Communications 15, 4953 (2024)
Nonreciprocal quantum transport effect is mainly governed by the symmetry breaking of the material systems and is gaining extensive attention in condensed matter physics. Realizing electrical switching of the polarity of the nonreciprocal transport w
Externí odkaz:
http://arxiv.org/abs/2406.14417
Autor:
Gao, Bin, Desrochers, Félix, Tam, David W., Steffens, Paul, Hiess, Arno, Su, Yixi, Cheong, Sang-Wook, Kim, Yong Baek, Dai, Pengcheng
A quantum spin liquid (QSL) arises from a highly entangled superposition of many degenerate classical ground states in a frustrated magnet, and is characterized by emergent gauge fields and deconfined fractionalized excitations (spinons). Because suc
Externí odkaz:
http://arxiv.org/abs/2404.04207
Autor:
Dai, Yudi, Xiong, Junlin, Ge, Yanfeng, Cheng, Bin, Wang, Lizheng, Wang, Pengfei, Liu, Zenglin, Yan, Shengnan, Zhang, Cuiwei, Xu, Xianghan, Shi, Youguo, Cheong, Sang-Wook, Xiao, Cong, Yang, Shengyuan A., Liang, Shi-Jun, Miao, Feng
Publikováno v:
Nature Communications 15, 1129 (2024)
The spin Hall effect (SHE) allows efficient generation of spin polarization or spin current through charge current and plays a crucial role in the development of spintronics. While SHE typically occurs in non-magnetic materials and is time-reversal e
Externí odkaz:
http://arxiv.org/abs/2403.18189
Recently, a new class of magnetic phenomenon, called altermagnetism, was proposed where the underlying spin configuration resembles antiferromagnetic structure, but the system violates \textbf{PT} (PT: Parity times Time reversal) symmetry due to the
Externí odkaz:
http://arxiv.org/abs/2402.17451
Autor:
Jin, Shuaizhao, Wang, Zhan, Dong, Shouzhe, Wang, Yiting, Han, Kun, Wang, Guangcheng, Deng, Zunyi, Jiang, Xingan, Zhang, Ying, Huang, Houbing, Hong, Jiawang, Wang, Xiaolei, Xia, Tianlong, Cheong, Sang-Wook, Wang, Xueyun
Motivated by advances in spintronic devices, an extensive exploration is underway to uncover materials that host topologically protected spin textures, exemplified by skyrmions. One critical challenge involved in the potential application of skyrmion
Externí odkaz:
http://arxiv.org/abs/2402.14573
Autor:
Cheong, Sang-Wook, Huang, Fei-Ting
Publikováno v:
Phys. Rev. B 108, 104413, 2024
Symmetry often governs the laws of nature, and breaking symmetry accompanies a new order parameter and emergent observable phenomena. Herein, we focus on broken Parity (P)-Time (T) symmetry, which lifts the Kramers' degeneracy, and thus, guarantees n
Externí odkaz:
http://arxiv.org/abs/2402.13875
Tracking topological defect motion and incommensurate charge order melting in a perovskite manganite
Autor:
Schnitzer, Noah, Goodge, Berit H., Powers, Gregory, Kim, Jaewook, Cheong, Sang-Wook, Baggari, Ismail El, Kourkoutis, Lena F.
Charge order pervades the phase diagrams of many quantum materials where it competes with superconducting and magnetic phases, hosts electronic phase transitions and topological defects, and couples to the lattice generating intricate structural dist
Externí odkaz:
http://arxiv.org/abs/2402.08580