title: Direct Observation of the High Magnetic Field Effect on the Jahn-Teller State in TbVO4.
abstract: We report the first direct observation of the influence of high magnetic fields on the Jahn-Teller (JT) transition in TbVO(4). 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.
authors: European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble Cedex, France.
authors: C
authors: C
authors: Detlefs
authors: F
authors: F
authors: Duc
authors: Z A
authors: ZA
authors: Kazeĭ
authors: J
authors: J
authors: Vanacken
authors: P
authors: P
authors: Frings
authors: W
authors: W
authors: Bras
authors: J E
authors: JE
authors: Lorenzo
authors: P C
authors: PC
authors: Canfield
authors: G L J A
authors: GL
authors: Rikken