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F. Michael Bartram on Muck Rack

F. Michael Bartram

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Articles

Discovery of terahertz-frequency orbitally coupled magnons in a kagome ferromagnet

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By Praveen Agrawal, Daiane Boff, Xinjian Fan, Mengqian Che, Weizhao Chen, Maoyuan Wang, Liangyang Liu, Xuebin Dong, Jinjin Liu, Yidian Li, Hao Lin, Zhiwei Wang, Enke Liu, Yugui Yao, Zhe Yuan, Guang-Ming Zhang, Luyi Yang, F. Michael Bartram
| Science Magazine Verified
Abstract In ferromagnetic materials, magnons—quanta of spin waves—typically resonate in the gigahertz range. Beyond conventional magnons, while theoretical studies have predicted magnons associated with orbital magnetic moments, their direct observation has remained challenging. Here, we present the discovery of two distinct terahertz orbitally coupled magnon resonances in the topological kagome ferromagnet Co3Sn2S2.
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