Understanding how quasiparticle renormalization influences thermodynamic properties is a central question of Fermi-liquid theory. In this work, we analyze the mass enhancement arising from the reduction of quasiparticle weight and its impact on the electronic specific heat. A straightforward microscopic evaluation of the Migdal–Galitskii expression, using a $T$-independent spectral function,...
The interplay between magnetism and superconductivity is one of the central topics of condensed matter physics, which has recently been put into new light by the discovery of altermagnets. Here, we study this interplay from a fundamental symmetry perspective using irreducible co-representations of the altermagnetic spin-point groups. We construct and tabulate all symmetry-allowed pairing...
Distorted kagome metals have emerged as fertile platforms for investigating the interplay between geometrical frustration, magnetoelastic coupling, and exotic electronic states. Rare-earth based kagome metal RAgGe (R = Tb, Dy) crystallize in a hexagonal structure that hosts a distorted kagome network of magnetic ions, providing an intriguing platform to study field-induced spin reorientation...
