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• W2021838401 abstract "We have investigated the spin dynamics of $mathrm{Y}mathrm{Mn}{mathrm{O}}_{3}$ by inelastic neutron scattering and determined the spin-wave dispersion at low temperature. The spin-wave dispersions at low temperature have been analyzed with a simple nearest-neighbor anisotropic Heisenberg model and also by an anisotropic Hubbard model. Best fits are obtained only in the strong-coupling limit $(U∕t>ensuremath{sim}15)$, with planar exchange energy $J=4{t}^{2}∕Uensuremath{simeq}2.4phantom{rule{0.3em}{0ex}}mathrm{meV}$, and anisotropy terms ${D}_{z}={U}_{{x}^{ensuremath{'}}}ensuremath{-}{U}_{{z}^{ensuremath{'}}}ensuremath{simeq}0.32phantom{rule{0.3em}{0ex}}mathrm{meV}$ and ${D}_{y}={U}_{{x}^{ensuremath{'}}}ensuremath{-}{U}_{{y}^{ensuremath{'}}}ensuremath{simeq}0.033phantom{rule{0.3em}{0ex}}mathrm{meV}$. We have shown that in the strong-coupling limit, the anisotropic Hubbard model maps into the anisotropic Heisenberg model." @default.
• W2021838401 created "2016-06-24" @default.
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• W2021838401 date "2007-10-03" @default.
• W2021838401 modified "2023-09-27" @default.
• W2021838401 title "Spin dynamics of<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:mi mathvariant=normal>Y</mml:mi><mml:mi mathvariant=normal>Mn</mml:mi><mml:msub><mml:mi mathvariant=normal>O</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>studied via inelastic neutron scattering and the anisotropic Hubbard model" @default.
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• W2021838401 doi "https://doi.org/10.1103/physrevb.76.144406" @default.
• W2021838401 hasPublicationYear "2007" @default.
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