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Direct Observation of the High Magnetic Field Effect on the Jahn-Teller State in TbVO4

C. Detlefs, F. Duc, Z. A. Kazeĭ, J. Vanacken, P. Frings, W. Bras, J. E. Lorenzo, P. C. Canfield, and G. L. J. A. Rikken
Phys. Rev. Lett. 100, 056405 – Published 8 February 2008

Abstract

We report the first direct observation of the influence of high magnetic fields on the Jahn-Teller (JT) transition in TbVO4. Contrary to spectroscopic and magnetic methods, x-ray diffraction directly measures the JT distortion; the splitting between the (311)/(131) and (202)/(022) pairs of Bragg reflections is proportional to the order parameter. Our experimental results are compared to mean-field calculations, taking into account all possible orientations of the grains relative to the applied field, and qualitative agreement is obtained.

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  • Received 19 November 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.056405

©2008 American Physical Society

Authors & Affiliations

C. Detlefs1, F. Duc2, Z. A. Kazeĭ3, J. Vanacken4, P. Frings2, W. Bras5, J. E. Lorenzo6, P. C. Canfield7, and G. L. J. A. Rikken2

  • 1European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble Cedex, France
  • 2Laboratoire National des Champs Magnétiques Pulsés, CNRS-INSA-UPS, Université de Toulouse, 143 Avenue de Rangueil, F-31400 Toulouse, France
  • 3Moscow State University, Leninskye Gory, Moscow, 119992 Russia
  • 4Pulsveldengroep, Institute for Nanoscale Physics and Chemistry, Clestijnenlaan 200D, B-3001 Leuven, Belgium
  • 5Netherlands Organisation for Scientific Research (NWO), DUBBLE CRG at the ESRF, BP220, F-38043 Grenoble, France
  • 6Institut Néel, CNRS, BP 166X, F-38043 Grenoble, France
  • 7Ames Laboratory, USDOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA

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Issue

Vol. 100, Iss. 5 — 8 February 2008

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