19 papers
Quantum Monte Carlo studies of U(1) lattice gauge models of Kondo breakdown
Gaopei Pan, Fakher F. Assaad
In the local-moment regime, heavy fermions are most economically described by a compact U(1) gauge theory. Motivated by this perspective, we study a minimal compact U(1) lattice ga…
Scale-invariant magnetic anisotropy in -RuCl: A quantum Monte Carlo study
Toshihiro Sato, B. J. Ramshaw, K. A. Modic +1
We compute the rotational anisotropy of the free energy of -RuCl in an external magnetic field. This quantity, known as the magnetotropic susceptibility, , relates to th…
Phase transitions on the dark side of the Gross-Neveu model: Spontaneous symmetry breaking at repulsive coupling
Gabriel Osiander Rein, Fakher F. Assaad, Igor F. Herbut
Gross-Neveu model in 2+1 dimensions exhibits a continuous transition from gapless Dirac semimetal to the gapped quantum anomalous Hall (QAH) insulator at a finite (attractive) coup…
Dynamical magnetotropic susceptibility as a new probe of Kitaev materials and beyond
João C. Inácio, J. Schwab, G. Rakhmanova +7
The magnetotropic susceptibility probes ultra-low-frequency uniform fluctuations. For a crystal mounted on an oscillating cantilever in a magnetic field, it is defined as t…
Generating ferro-spinetic polarizations in altermagnetic insulators
Toshihiro Sato, Mengli Hu, Ion Cosma Fulga +5
Altermagnets are a novel class of fully spin-compensated magnetic materials that nevertheless have spin-split electronic bands, offering novel perspectives for spintronics applicat…
Revealing altermagnetic Fermi surfaces with two Kondo impurities
Qiong Qin, Toshihiro Sato, Marcin Raczkowski +3
Motivated by recent advances in the study of altermagnetism, or unconventional magnetism, and in the realization and manipulation of two-impurity Kondo physics in real materials, w…