%0 Journal Article
%A Alahmed, Laith
%A Zhang, Xiaoqian
%A Wen, Jiajia
%A Xiong, Yuzan
%A Li, Yi
%A Zhang, Lichuan
%A Lux, Fabian
%A Freimuth, Frank
%A Mahdi, Muntasir
%A Mokrousov, Yuriy
%A Novosad, Valentine
%A Kwok, Wai-Kwong
%A Yu, Dapeng
%A Zhang, Wei
%A Lee, Young S.
%A Li, Peng
%T Evidence of Magnon-Mediated Orbital Magnetism in a Quasi-2D Topological Magnon Insulator
%J Nano letters
%V 22
%N 13
%@ 1530-6984
%C Washington, DC
%I ACS Publ.
%M FZJ-2022-03908
%P 5114 - 5119
%D 2022
%X We explore spin dynamics in Cu(1,3-bdc), a quasi-2D topological magnon insulator. The results show that the thermal evolution of the Landé g factor (g) is anisotropic: gin-plane decreases while gout-of-plane increases with increasing temperature T. Moreover, the anisotropy of the g factor (Δg) and the anisotropy of saturation magnetization (ΔMs) are correlated below 4 K, but they diverge above 4 K. We show that the electronic orbital moment contributes to the g anisotropy at lower T, while the topological orbital moment induced by thermally excited spin chirality dictates the g anisotropy at higher T. Our work suggests an interplay among topology, spin chirality, and orbital magnetism in Cu(1,3-bdc).
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 35699946
%U <Go to ISI:>//WOS:000820382100001
%R 10.1021/acs.nanolett.2c00562
%U https://juser.fz-juelich.de/record/910526