Spin ordering and orbital ordering transitions in MnV{sub 2}O{sub 4}
- Department of Physics, Florida State University, Tallahassee, Florida 32306-3016 (United States)
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306-4005 (United States)
We present low-temperature x-ray diffraction, susceptibility, specific heat, and thermal conductivity results both on single crystal and polycrystalline MnV{sub 2}O{sub 4}. The single crystal sample exhibits two transitions: a spin ordering (ferrimagnetic) transition at T{sub SO}=56 K and an orbital ordering transition at T{sub OO}=52 K. The structural change and phase separation at T{sub OO} suggest that the transition is first order. With applied magnetic fields, both T{sub SO} and T{sub OO} increase and T{sub OO} disappears with H{>=}0.5 T. The polycrystalline sample just exhibits one transition at 55 K. The difference between the single crystal and polycrystalline samples is due to the nonstoichiometric polycrystalline sample.
- OSTI ID:
- 21052750
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 76, Issue 17; Other Information: DOI: 10.1103/PhysRevB.76.174403; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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