Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Han-Qing Wu"'
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-11 (2022)
Abstract Using quantum Monte Carlo, exact diagonalization, and perturbation theory, we study the spectrum of the S = 1/2 antiferromagnetic Heisenberg trimer chain by varying the ratio g = J 2/J 1 of the intertrimer and intratrimer coupling strengths.
Externí odkaz:
https://doaj.org/article/4a3bf9f468f54a6b8c806ed4a67a292e
Autor:
Han Li, Hao-Kai Zhang, Jiucai Wang, Han-Qing Wu, Yuan Gao, Dai-Wei Qu, Zheng-Xin Liu, Shou-Shu Gong, Wei Li
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)
The nature of spin interactions and the field-induced quantum spin liquid phase in the Kitaev material α-RuCl3 have been debated. Here, using a combination of many-body techniques, the authors derive an effective spin model that explains the majorit
Externí odkaz:
https://doaj.org/article/46827e145af84439ae592bd293308a36
Autor:
Han-Qing Wu, Yan-Ying Li
Publikováno v:
Results in Chemistry, Vol 4, Iss , Pp 100582- (2022)
A new rare earth metal borate crystalline compound Pr[B5O8(OH)]NO3·2H2O (1) containing nitrate anions was obtained using a hydrothermal method. The crystal structure was examined using single-crystal X-ray diffraction. The compound crystallises in t
Externí odkaz:
https://doaj.org/article/e1a714104ba84b69906df5ff9e524ab0
Autor:
Yuan Da Liao, Jian Kang, Clara N. Breiø, Xiao Yan Xu, Han-Qing Wu, Brian M. Andersen, Rafael M. Fernandes, Zi Yang Meng
Publikováno v:
Physical Review X, Vol 11, Iss 1, p 011014 (2021)
Twisted bilayer graphene (TBG) provides a unique framework to elucidate the interplay between strong correlations and topological phenomena in two-dimensional systems. The existence of multiple electronic degrees of freedom—charge, spin, and valley
Externí odkaz:
https://doaj.org/article/8b3a411639244fd2bf0e95b6d7194e26
Publikováno v:
Physical Review B. 107
Publikováno v:
Physical Review B. 106
Publikováno v:
Physical Review B. 106
Autor:
Yan‐Ying Li, Han‐Qing Wu
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 646:1679-1682
By using Lanczos exact diagonalization and quantum Monte Carlo combined with stochastic analytic continuation, we study the dynamical properties of the $S=1$ antiferromagnetic Heisenberg chain with different strengths of bond disorder. In the weak di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::469d0d85efb24a3f7cc98adcc493ea82
http://arxiv.org/abs/2109.00552
http://arxiv.org/abs/2109.00552
Publikováno v:
Physical Review Letters. 126
We investigate the amplitude (Higgs) mode associated with longitudinal fluctuations of the order parameter at the continuous spontaneous symmetry breaking phase transition. In quantum magnets, due to the fast decay of the amplitude mode into low-ener