Orbital fluctuations in the S= 1/2 Mott insulator Sr2 VO 4

H. D. Zhou, Y. J. Jo, J. Fiore Carpino, G. J. Munoz, C. R. Wiebe, J. G. Cheng, F. Rivadulla, D. T. Adroja

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20 Scopus citations


We report a high-energy inelastic neutron-scattering study on Sr 2 VO4 that shows a transition from an orbital liquid phase at high temperature to an orbital-order phase at low temperature with an unquenched orbital angular momentum. Susceptibility under pressure shows a collapse of the magnetic phase transition due to enhanced orbital fluctuations. One possible explanation for our data is the recently proposed magnetically hidden order of Kramers doublets in d1 electron systems.

Original languageEnglish
Article number212401
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number21
StatePublished - 4 Jun 2010


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