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6 papers · 2 filters
Thermodynamic Stability at the Two-Particle Level
A. Kowalski, M. Reitner, L. Del Re +6
We show how the stability conditions for a system of interacting fermions that conventionally involve variations of thermodynamic potentials can be rewritten in terms of one- and t…
T-square dependence of the electronic thermal resistivity in metallic strontium titanate
Shan Jiang, Benoît Fauqué, Kamran Behnia
The temperature dependence of the phase space for electron-electron (e-e) collisions leads to a T-square contribution to electrical resistivity of metals. Umklapp scattering are id…
Tuning the anomalous Nernst and Hall effects with shifting the chemical potential in Fe-doped and Ni-doped CoSnS
Jie Liu, Linchao Ding, Liangcai Xu +3
CoSnS is believed to be a magnetic Weyl semimetal. It displays large anomalous Hall, Nernst and thermal Hall effects with a remarkably large anomalous Hall angle. Here,…
The phonon thermal Hall angle in black phosphorus
Xiaokang Li, Yo Machida, Alaska Subedi +3
The origin of phonon thermal Hall Effect (THE) observed in a variety of insulators is yet to be identified. Here, we report on the observation of a thermal Hall conductivity in a n…
Slave-spin mean field for broken-symmetry states: Néel antiferromagnetism and its phase separation in multi-orbital Hubbard models
Matteo Crispino, Maria Chatzieleftheriou, Tommaso Gorni +1
We introduce the generalization of the Slave-Spin Mean-Field method to broken-symmetry phases. Through a variational approach we derive the single-particle energy shift in the mean…
Magnetostriction, piezomagnetism and domain nucleation in a kagome antiferromagnet
Qingkai Meng, Jianting Dong, Pan Nie +9
Whenever the elastic energy of a solid depends on magnetic field, there is a magnetostrictive response. Field-linear magnetostriction implies piezomagnetism and vice versa. Here, w…