22 citations · 115 across the 17 of their papers we have counts for
5 papers · 1 filter
Helical Fermi Arc in Altermagnetic Weyl Semimetal
Yu-Hao Wan, Cheng-Ming Miao, Peng-Yi Liu +1
We investigate the topological properties of modified Dirac Hamiltonians with an altermagnetic mass term and reveal a novel mechanism for realizing altermagnetic Weyl semimetals. U…
Quantum Anomalous Hall Effect in Ferromagnetic Metals
Yu-Hao Wan, Peng-Yi Liu, Qing-Feng Sun
The quantum anomalous Hall (QAH) effect holds fundamental importance in topological physics and technological promise for electronics. It is generally believed that the QAH effect…
Interplay of Altermagnetic Order and Wilson Mass in the Dirac Equation: Helical Edge States without Time-Reversal Symmetry
Yu-Hao Wan, Peng-Yi Liu, Qing-Feng Sun
We investigate topological phases in three-dimensional topological insulator (3DTI) thin films interfaced with altermagnetic (AM) orders. Starting from a modified Dirac equation, w…
Altermagnetism-Induced Parity Anomaly in Weak Topological Insulators
Yu-Hao Wan, Qing-Feng Sun
We demonstrate that introducing altermagnetism on the surface of a weak topological insulator (TI) results in the emergence of a single massless Dirac fermion, exhibiting a parity…
Tunable Majorana corner states driven by superconducting phase bias in a vertical Josephson junction
Cheng-Ming Miao, Yu-Hao Wan, Ying-Tao Zhang +1
The realization and manipulation of Majorana zero modes is a key step in achieving topological quantum computation. In this paper, we demonstrate the existence of Majorana corner s…