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A quest for frustration driven distortion in Y2Mo2O7

Eva Sagi·Oren Ofer·Amit Keren·Jason S. Gardner
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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 muSR 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 magneto-elastic coupling at T>0.

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Eva Sagi, Oren Ofer, Amit Keren, Jason S. Gardner. 2005-05-05. A quest for frustration driven distortion in Y2Mo2O7. https://doi.org/10.1103/physrevlett.94.237202

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