Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Zhao-Long Gu"'
Autor:
Song Bao, Zhao-Long Gu, Yanyan Shangguan, Zhentao Huang, Junbo Liao, Xiaoxue Zhao, Bo Zhang, Zhao-Yang Dong, Wei Wang, Ryoichi Kajimoto, Mitsutaka Nakamura, Tom Fennell, Shun-Li Yu, Jian-Xin Li, Jinsheng Wen
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for magno
Externí odkaz:
https://doaj.org/article/5af7db7a8f58480b96c6e6bbfb85a49e
Publikováno v:
New Journal of Physics, Vol 21, Iss 7, p 073016 (2019)
We detect the topological properties of Chern insulators with strong Coulomb interactions by use of cluster perturbation theory and variational cluster approach. The common scheme in previous studies only involves the calculation of the interacting b
Externí odkaz:
https://doaj.org/article/6e2049fdc78249d1b57de2a0dac7ea2a
Publikováno v:
New Journal of Physics, Vol 19, Iss 9, p 093017 (2017)
We propose to use the sub-system fidelity, defined by comparing a pair of reduced density matrices, to identify and locate zero modes relating two degenerate ground states in one-dimensional interacting many-body systems, where the degeneracy arises
Externí odkaz:
https://doaj.org/article/f68e023f4c7e4bd3a4c5d17f91cac3cc
Autor:
Xiaoxiang Xi, Wenda Si, Yi-Peng Gao, Jian-Xin Li, Dongjing Lin, Jinsheng Wen, Yanyan Shangguan, Jinghui Wang, Zhao-Long Gu, Shun-Li Yu, Shichao Li, D. T. Adroja, Zhao-Yang Dong, Yizhang Wu, Kejing Ran, Xiaoshan Wu, Wei Wang, Zhen Ma, Zhengwei Cai, Song Bao
Publikováno v:
Physical Review B. 104
Topological magnons are bosonic analogues of topological fermions in electronic systems. They have been studied extensively by theory but rarely realized by experiment. Here, by performing inelastic neutron scattering measurements on single crystals
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad099a9d5de166b2bc0cefba41797dd0
https://doi.org/10.1103/physrevb.104.l020402
https://doi.org/10.1103/physrevb.104.l020402
Autor:
Xing Yang, Zhao-Long Gu, Huimin Wang, Jing-Jing Xian, Sheng Meng, Naoto Nagaosa, Wen-Hao Zhang, Hai-Wen Liu, Zi-Heng Ling, Kai Fan, Zhi-Mo Zhang, Le Qin, Zhi-Hao Zhang, Yan Liang, Jian-Xin Li, Ying-Shuang Fu
Correlated states emerge in low-dimensional systems owing to enhanced Coulomb interactions. Elucidating these states requires atomic scale characterization and delicate control capabilities. In this study, spectroscopic imaging-scanning tunneling mic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d028fc4504a56708d33d5e183fac9f7
We introduce an entanglement entropy analysis to quantitatively identify the confinement and deconfinement of the spinons in the spin excitations of quantum magnets. Our proposal is implemented by the parton construction of a honeycomb-lattice antife
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b4acd95d5219da8d6abc5b1b011b053
The elementary excitations from the conventional magnetic ordered states, such as ferromagnets and antiferromagnets, are magnons. Here, we elaborate a case where the well-defined magnons are absent completely and the spin excitation spectra exhibit a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18c16b9c9a9c85e34c7dcbe50c944675
http://arxiv.org/abs/2007.13142
http://arxiv.org/abs/2007.13142
Autor:
Zhao-Long Gu, Jian-Xin Li
Publikováno v:
Chinese Physics Letters. 38:057501
We show that a suitable combination of flat-band ferromagnetism, geometry and nontrivial electronic band topology can give rise to itinerant topological magnons. An SU(2) symmetric topological Hubbard model with nearly flat electronic bands, on a Kag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a11ef23eadf160cc6243028af35ba08d
https://doi.org/10.1088/0256-307x/38/5/057501
https://doi.org/10.1088/0256-307x/38/5/057501
Different from previous scenarios that topological magnons emerge in local spin models, we propose an alternative that itinerant electron magnets can host topological magnons. A one-dimensional Tasaki model with a flat band is considered as the proto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29fa3e8ba7582bd4d8eca42e9f1a381c
We study the spin-1 excitation spectra of the flatband ferromagnetic phases in interacting topological insulators. As a paradigm, we consider a quarter filled square lattice Hubbard model whose free part is the $\pi$ flux state with topologically non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe4ed8ec3028594111c90d1ec90a2d7c