Direct observation of the high magnetic field effect on the Jahn-Teller state in TbVO4
arXiv:0711.2874 · doi:10.1103/PhysRevLett.100.056405
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.
arXiv comment11 pages, 4 figures, submitted to Phys. Rev. Lett
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