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Magnetic susceptibility and specific heat of a spinel MnV2O4 single crystal SCIE SCOPUS

Title
Magnetic susceptibility and specific heat of a spinel MnV2O4 single crystal
Authors
Myung-Whun, KKim, JSKatsufuji, TKremer, RK
Date Issued
2011-01-19
Publisher
Americal Physical Society
Abstract
We investigated the magnetic and the thermodynamic properties of a spinel MnV2O4 single crystal. The magnetization and susceptibility show the signature of ferromagnetic ordering at similar to 61 K. A sharp peak in the magnetization and the specific heat indicate the structural phase transition at 58 K, consistent with the scattering experiments. The specific-heat data exhibits the signature of double transitions. In addition to the higher-temperature transition at T-S, the second transition occurs at a lower temperature T*, which divides the phase below T-S into a low-magnetic-field and a high-magnetic-field phase. Based on the magnetic susceptibility and the specific heat, a wide-range temperature and magnetic-field phase diagram was constructed. The low-magnetic-field phase shows the characteristics of a spin-glass-like state. A comparison with the magnetic and thermodynamic characteristics of similar materials suggests that the low temperature and low-magnetic-field, spin-glass-like phase in MnV2O4 may originate from the competition between the interchain and the intrachain exchange interaction owing to the fluctuating V-ion orbitals.
URI
https://oasis.postech.ac.kr/handle/2014.oak/12267
DOI
10.1103/PHYSREVB.83.024403
ISSN
1098-0121
Article Type
Article
Citation
PHYSICAL REVIEW B, vol. 83, no. 2, page. 24403, 2011-01-19
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