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4 papers
Spontaneous Fully Compensated Ferrimagnetism
Bingbing Wang, Yongpan Li, Yichen Liu +1
We propose a general mechanism for the spontaneous emergence of filling-enforced fully compensated ferrimagnetism (fFIM), characterized by zero net magnetization yet ferromagnetic-…
Unconventional Magneto-Optical Effects in Altermagnets
Yongpan Li, Yichen Liu, Cheng-Cheng Liu
The ideal altermagnets are a class of collinear, crystal-symmetry-enforced fully compensated magnets with nonrelativistic spin-split bands, in which contributions from Berry curvat…
Quantum metric-based optical selection rules
Yongpan Li, Cheng-Cheng Liu
The optical selection rules dictate symmetry-allowed/forbidden transitions, playing a decisive role in engineering exciton quantum states and designing optoelectronic devices. Whil…
Two-dimensional fully-compensated Ferrimagnetism
Yichen Liu, San-Dong Guo, Yongpan Li +1
Antiferromagnetic spintronics has long been a subject of intense research interest, and the recent introduction of altermagnetism has further ignited enthusiasm in the field. Howev…