X-ray diffraction study of the temperature-induced structural phase transitions in SmVO3
作者： R. D. Johnson , C. C. Tang , I. R. Evans , S. R. Bland , D. G. Free
DOI: 10.1103/PHYSREVB.85.224102
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摘要: Through powder x-ray diffraction we have investigated the structural behavior of SmVO${}_{3}$, in which orbital and magnetic degrees freedom are believed to be closely coupled crystal lattice. We found, contrary previous reports, that SmVO${}_{3}$ exists a single, monoclinic phase below 200 K. The associated crystallographic distortion is then stabilized through magnetostriction occurs 134 structure has been refined using synchrotron data measured throughout diagram, showing substantial Jahn-Teller VO${}_{6}$ octahedra phase, compatible with expected $G$-type order. Changes vanadium ion field due transitions probed by resonant diffraction.
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