Transport Behavior in Spinel Oxide MgTi2 O4
ZHU Yuan-Yuan, WANG Rong-Juan, WANG Li, LIU Yong** , XIONG Rui** , SHI Jing, AN Li-Heng, SUN Duo-Hua
Key Laboratory of Artificial Micro- and Nanostructures (Ministry of Education) and School of Physics and Technology, Wuhan University, Wuhan 430072
Abstract ：Spinel oxide MgTi2 O4 is synthesized by the spark plasma sintering method. The temperature dependences of magnetic susceptibility and resistance are measured and investigated in detail. It is shown that the transition of MgTi2 O4 occurs at the phase transition temperature Tt ～ 258 K. The fits of resistance versus temperature curve demonstrate that MgTi2 O4 displays metal behavior above Tt , while a dual conducting mechanism, the Mott-insulator-like variable range hopping and normal activated conduction, is suggested to be responsible for the transport behavior of MgTi2 O4 below Tt .
出版日期: 2014-08-22
:
72.80.Ga
(Transition-metal compounds)
73.61.Ga
(II-VI semiconductors)
72.20.Dp
(General theory, scattering mechanisms)
引用本文:
. [J]. 中国物理快报, 2014, 31(09): 97201-097201.
2 O4 . Chin. Phys. Lett., 2014, 31(09): 97201-097201.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/31/9/097201
或
https://cpl.iphy.ac.cn/CN/Y2014/V31/I09/97201
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2014, Vol. 31 
