11 papers
Finite-momentum bound pairs of two electrons in an altermagnetic metal
Hui Hu, Zhao Liu, Jia Wang +1
We solve the two-electron problem on a square lattice with d-wave altermagnetism, considering both on-site and nearest-neighbor attractive interactions. The altermagnetic spin-spli…
Altermagnetism and Superconductivity: A Short Historical Review
Zhao Liu, Hui Hu, Xia-Ji Liu
This review is organized into three parts. In the first part, we explore the deep interconnections among three seemingly unrelated concepts in condensed matter physics: electronic…
Finite-momentum superconductivity with singlet-triplet mixing in an altermagnetic metal: A pairing instability analysis
Hui Hu, Zhao Liu, Jia Wang +2
We analyze the pairing instability of an altermagnetic metal on a square lattice driven by an attractive nearest-neighbor interaction. This interaction enables multiple pairing cha…
Properties of Bose-Einstein condensates with altermagnetism
Jia Wang, Zhao Liu, Xia-Ji Liu +1
We investigate a weakly interacting two-component Bose--Einstein condensate in the miscible regime in the presence of \emph{altermagnetism}, i.e., a collinear and globally compensa…
Fulde-Ferrell-Larkin-Ovchinnikov States and Topological Bogoliubov Fermi Surfaces in Altermagnets: an Analytical Study
Zhao Liu, Hui Hu, Xia-ji Liu
We present an analytical study of the ground-state phase diagram for dilute two-dimensional spin-1/2 Fermi gases exhibiting -wave altermagnetic spin splitting under -wave pai…
Altermagnetism-driven FFLO superconductivity in finite-filling 2D lattices
Xia-Ji Liu, Hui Hu
We systematically investigate the emergence of finite-momentum Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconductivity in a square lattice Hubbard model with finite filling, driv…