Block orbital-selective Mott insulators: A spin excitation analysis
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DOI: 10.1103/physrevb.102.115134
Abstract: We present a comprehensive study of the spin excitations---as measured by the dynamical spin structure factor $S(q,\ensuremath{\omega})$---of the so-called block-magnetic state of low-dimensional orbital-selective Mott insulators. We realize this state via both a multi-orbital Hubbard… read more here.
Keywords: block; spin excitation; selective mott; orbital selective ... See more keywords
Spin excitation anisotropy in the paramagnetic tetragonal phase of BaFe2As2
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DOI: 10.1103/physrevb.96.020404
Abstract: We use neutron polarization analysis to study temperature dependence of the spin excitation anisotropy in BaFe$_2$As$_2$, which has a tetragonal-to-orthorhombic structural distortion at $T_s$ and antiferromagnetic (AF) phase transition at $T_N$ with ordered moments along… read more here.
Keywords: excitation anisotropy; spin; tetragonal phase; spin excitation ... See more keywords