Quest for frustration driven distortion in Y2Mo2O7

Eva Sagi; Oren Ofer; Amit Keren; Jason S. Gardner

doi:10.1103/PhysRevLett.94.237202

Quest for frustration driven distortion in Y2Mo2O7

Eva Sagi, Oren Ofer, Amit Keren, Jason S. Gardner

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26 Scopus citations

Abstract

We investigated the nature of the freezing in the geometrically frustrated Heisenberg spin glass Y2Mo2O7 by measuring the temperature dependence of the static internal magnetic field distribution above the spin-glass temperature, Tg, using the muon spin relaxation technique. The evolution of the field distribution cannot be explained by changes in the spin susceptibility alone and suggests a lattice deformation. This possibility is addressed by numerical simulations of the Heisenberg Hamiltonian with magnetoelastic coupling at T>0.

Original language	English
Article number	237202
Journal	Physical Review Letters
Volume	94
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.94.237202
State	Published - Jun 17 2005
Externally published	Yes

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10.1103/PhysRevLett.94.237202

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title = "Quest for frustration driven distortion in Y2Mo2O7",

abstract = "We investigated the nature of the freezing in the geometrically frustrated Heisenberg spin glass Y2Mo2O7 by measuring the temperature dependence of the static internal magnetic field distribution above the spin-glass temperature, Tg, using the muon spin relaxation technique. The evolution of the field distribution cannot be explained by changes in the spin susceptibility alone and suggests a lattice deformation. This possibility is addressed by numerical simulations of the Heisenberg Hamiltonian with magnetoelastic coupling at T>0.",

author = "Eva Sagi and Oren Ofer and Amit Keren and Gardner, {Jason S.}",

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N2 - We investigated the nature of the freezing in the geometrically frustrated Heisenberg spin glass Y2Mo2O7 by measuring the temperature dependence of the static internal magnetic field distribution above the spin-glass temperature, Tg, using the muon spin relaxation technique. The evolution of the field distribution cannot be explained by changes in the spin susceptibility alone and suggests a lattice deformation. This possibility is addressed by numerical simulations of the Heisenberg Hamiltonian with magnetoelastic coupling at T>0.

AB - We investigated the nature of the freezing in the geometrically frustrated Heisenberg spin glass Y2Mo2O7 by measuring the temperature dependence of the static internal magnetic field distribution above the spin-glass temperature, Tg, using the muon spin relaxation technique. The evolution of the field distribution cannot be explained by changes in the spin susceptibility alone and suggests a lattice deformation. This possibility is addressed by numerical simulations of the Heisenberg Hamiltonian with magnetoelastic coupling at T>0.

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Quest for frustration driven distortion in Y2Mo2O7

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