7 papers
Unconventional Josephson effects in {\it PT}-symmetric antiferromagnetic bilayers
Jin-Xin Hu, Mengli Hu, Ying-Ming Xie +1
We propose that unconventional Josephson effects can typically emerge in {\it PT}-symmetric antiferromagnetic (AFM) bilayer systems. When proximitized by a conventional superconduc…
Spin Group Symmetry Criteria for Odd-parity Magnets
Xun-Jiang Luo, Jin-Xin Hu, Meng-Li Hu +1
Odd-parity magnets (OPMs) have recently emerged as a new magnetic class, but their general symmetry criteria remain elusive. In this Letter, we establish these criteria through a c…
Universal Boundary-Modes Localization from Quantum Metric Length
Xing-Lei Ma, Jin-Xin Hu, K. T. Law
The presence of localized boundary modes is an unambiguous hallmark of topological quantum matter. While these modes are typically protected by topological invariants such as the C…
Flat-band Fulde-Ferrell-Larkin-Ovchinnikov State from Quantum Geometric Discrepancy
Zi-Ting Sun, Ruo-Peng Yu, Shuai A. Chen +2
We propose a new scheme for realizing Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) Cooper pairing states within flat bands, in contrast to the conventional paradigm such as the Zeeman e…
Layer Pseudospin Superconductivity in Twisted MoTe
Jin-Xin Hu, Akito Daido, Zi-Ting Sun +2
Recent experiments have observed signatures of spin-valley-polarized unconventional superconductivity in twisted bilayer MoTe (tMoTe). Here, we explore the rich physics of…
Geometric and conventional contributions of superconducting diode effect: Application to flat-band systems
Jin-Xin Hu, Shuai A. Chen, K. T. Law
Nonreciprocal critical supercurrents give rise to the superconducting diode effect (SDE) in noncentrosymmetric superconductors when time-reversal symmetry is broken. In this paper,…