5 papers
Van Hove singularity-induced multiple magnetic transitions in multi-orbital systems
Chen Lu, Lun-Hui Hu
Van Hove singularities (VHSs) amplify electronic correlations, providing a crucial platform for discovering novel quantum phase transitions. Here, we show that VHSs in multi-orbita…
Field-free Josephson diode and tunable -junction in chiral kagome antiferromagnets
Jin-Xing Hou, Chuang Li, Lun-Hui Hu +1
The recent realization of superconducting proximity effect in chiral antiferromagnets (cAFMs) opens a new route to nonreciprocal superconducting transport of fundamental interest a…
Inter-orbital spin-triplet superconductivity from altermagnetic fluctuations
Chen Lu, Chuang Li, Chao Cao +3
Altermagnetic (AM) fluctuations are a new class of collinear spin fluctuations whose role in mediating superconductivity faces a fundamental tension: their -point peak favors in…
Breakdown of Stoner Ferromagnetism by Intrinsic Altermagnetism
Chen Lu, Chao Cao, Huiqiu Yuan +2
The Stoner criterion for ferromagnetism arises from interaction-driven asymmetric filling of spin bands, requiring that the spin susceptibility: (i) peaks dominantly at $\mathbf{Q}…
Spin-Orbital Altermagnetism
Zi-Ming Wang, Yang Zhang, Song-Bo Zhang +4
Altermagnet is a newly discovered magnetic phase, characterized by non-relativistic spin-splitting that has been experimentally observed. Here, we introduce a framework dubbed {\it…