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cond-mat.str-el2024
Thermal decay of two-spinon bound states in quasi-2D triangular antiferromagnets
I. L. Pomponio, E. A. Ghioldi, C. J. Gazza +2
We analyze the temperature evolution of the anomalous magnetic spectrum of the spin-1/2 triangular quantum Heisenberg antiferromagnet, which is proximate to a quantum phase transit…
cond-mat.str-el2024
Derivation of low-energy Hamiltonians for heavy-fermion Materials
E. A. Ghioldi, Zhentao Wang, L. M. Chinellato +7
By utilizing a multi-orbital periodic Anderson model with parameters obtained from \textit{ab initio} band structure calculations, combined with degenerate perturbation theory, we…