Unusual orbital and atomic ordering in tetragonal phase of MgTi2O4
نویسندگان
چکیده
منابع مشابه
Orbital-ordering-induced phase transition in LaVO3 and CeVO3
The structural phase transition in the orthovanadates LaVO3 and CeVO3 has been studied with high energy synchrotron x-ray diffraction. LaVO3 undergoes a second order phase transition at TN5143 K and a first order transition at Tt5141 K, while in CeVO3 there are phase transitions occurring at T05154 K of second order and at TN5134 K of first order. These phase transitions are confirmed by specif...
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Temperature-dependent dc susceptibility and x-ray powder diffraction on a pure tetragonal sample of Sr(2)VO(4) show an antiferromagnetic orbital-ordering transition at T(oo) = 97 K, in which the occupied orbitals lie along the c axis. The unusual broadening of the x-ray Bragg peaks throughout the orbital-ordering transition temperature region indicates that this process occurs in stages, and th...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 2011
ISSN: 0108-7673
DOI: 10.1107/s010876731107961x