3 papers
cond-mat.mes-hall2026
Excitonic Quantum Anomalous Hall Effect in Collinear Magnets Without Spin-Orbit Coupling
Xingxing Liu, ChaoYang Tan, Peng-Jie Guo +2
Spin-orbit coupling (SOC) is thought to be necessary in realizing quantum anomalous Hall (QAH) insulators in magnetic materials. In this Letter, we propose an exciton-condensation…
cond-mat1995
Impurity Energy Level Within The Haldane Gap
Wei Wang, Shaojin Qin, Zhong-Yi Lu +2
An impurity bond in a periodic 1D antiferromagnetic, spin 1 chain with exchange is considered. Using the numerical density matrix renormalization group method, we find a…
cond-mat1993
The Haldane Energy Gap of A Doped Linear-Chain Heisenberg Antiferromagnet
Zhong-Yi LU, Zhao-Bin, SU +1
Using the valence-bond-solid (VBS) approach and the Schwinger boson mean field approximation, we study the dependence of the Haldane gap of a spin-1 linear chain Heisenberg antifer…