A 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 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.

5 pages 4 figures. Accepted for publication in PRL

References in corpus (9)

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• Order by distortion and string modes in pyrochlore antiferromagnet
• Spin Driven Jahn-Teller Distortion in a Pyrochlore system
• Probing spin correlations with phonons in the strongly frustrated magnet ZnCr2O4
• Spin-Peierls phases in pyrochlore antiferromagnets
• Local lattice disorder in the geometrically-frustrated spin glass pyrochlore Y2Mo2O7
• Frustration driven structural distortion in VOMoO4
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Cited by in corpus (15)

• Magnetic Pyrochlore Oxides
• Spin-glass transition in bond-disordered Heisenberg antiferromagnets coupled with local lattice distortions on a pyrochlore lattice
• Orbital Dimer Model for Spin-Glass State in Y${}_2$Mo${}_2$O${}_7$
• Order-by-disorder in the antiferromagnetic Ising model on an elastic triangular lattice
• The kagome staircase compounds Ni${}_3$V${}_2$O${}_8$ and Co${}_3$V${}_2$O${}_8$ studied with implanted muons
• Effect of magnetoelastic coupling on spin-glass behavior in Heisenberg pyrochlore antiferromagnets with bond disorder
• Spin-orbital frustration in pyrochlores A2Mo2O7
• Structural instability of two- and three-dimensional pyrochlore spin lattices in high magnetic fields
• Origin of magnetic freezing in the pyrochlore Y2Mo2O7
• Muon-Spin Spectroscopy of the organometallic spin 1/2 kagome-lattice compound Cu(1,3-benzenedicarboxylate)
• Lack of static lattice distortion in $T{b}_{2}T{i}_2{O}_7$
• Giant Magnetoelastic-Coupling Driven Spin-Lattice Liquid State in Molybdate Pyrochlores
• The magnetic phase of the perovskite CaCrO${}_3$ studied with ${\mu }^{+}$SR
• Amorphous ferromagnetism and re-entrant magnetic glassiness in Sm${}_2$Mo${}_2$O${}_7$: new insights into the electronic phase diagram of pyrochlore molybdates
• Mott transition and anomalous resistive state in the pyrochlore molybdates