Magnetic structure and dynamics in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>α</mml:mi></mml:math>- and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>β</mml:mi></mml:math>-phase solid oxygen
Peter W. StephensDepartment of Physics, State University of New York at Stony Brook, Stony Brook, New York 11794R. J. BirgeneauDepartment of Physics, State University of New York at Stony Brook, Stony Brook, New York 11794C. F. MajkrzakDepartment of Physics, State University of New York at Stony Brook, Stony Brook, New York 11794G. ShiraneDepartment of Physics, State University of New York at Stony Brook, Stony Brook, New York 11794
1983lv
ABI
Abstract
We have carried out a polarized neutron scattering study of $\ensuremath{\alpha}$- and $\ensuremath{\beta}$-phase solid oxygen. The diffuse quasielastic scattering in the $\ensuremath{\beta}$ phase is suggestive of three-sublattice noncollinear short-range order with an in-plane correlation length of 9 \ifmmode\pm\else\textpm\fi{} 1 \AA{}. $\ensuremath{\alpha}$-phase oxygen exhibits strong inelastic magnetic scattering with the magnon density of states peaking at 10 \ifmmode\pm\else\textpm\fi{} 1 meV. A two-dimensional model is shown to describe well the magnetic properties of both phases.
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Cited by 30 references