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cond-mat.str-el2025
Tunneling spectroscopy of the spinon-Kondo effect in one-dimensional Mott insulators
Rodrigo G. Pereira, Bruno F. Marquez, Karen Hallberg +2
We study the tunneling density of states (TDOS) in one-dimensional Mott insulators at energies below the charge gap. By employing nonlinear Luttinger liquid theory and density-matr…
cond-mat.str-el2024
Local spin-flip transitions induced by magnetic quantum impurities in two-dimensional magnets
Tim Bauer, Lucas R. D. Freitas, Eric C. Andrade +2
We predict a general local spin-flip transition mechanism caused by magnetic quantum impurities in (partially) polarized phases of quantum magnets in the absence of conservation la…
cond-mat.str-el2023
Electric polarization near vortices in the extended Kitaev model
Lucas R. D. Freitas, Tim Bauer, Reinhold Egger +1
We formulate a Majorana mean-field theory for the extended Kitaev model in a magnetic Zeeman field of arbitrary direction, and apply it for studying spatially inhomogeneous s…