Transition-element doping effects in La 0.7 Ca 0.3 MnO 3
Transition-element doping effects in La 0.7 Ca 0.3 MnO 3
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DOI：
10.1103/physrevb.59.533
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发表时间：
1999
影响因子：
3.7
通讯作者：
K. Ghosh;S. Ogale;R. Ramesh;R. L. Greene;T. Venkatesan;K. M. Gapchup;R. Bathe;S. Patil
中科院分区：
文献类型：
--
作者：
K. Ghosh;S. Ogale;R. Ramesh;R. L. Greene;T. Venkatesan;K. M. Gapchup;R. Bathe;S. Patil
The influence of transition element (TE) doping on the magnetotransport properties of ${\mathrm{La}}_{0.7}{\mathrm{Ca}}_{0.3}{\mathrm{MnO}}_{3}$ is studied for the entire transition element series ($\mathrm{T}\mathrm{E}=\mathrm{C}\mathrm{r},$ Fe, Co, Ni, Cu, Zn) for a fixed (5% at Mn sites) dopant concentration. The systematics of different properties such as the metal-insulator transition temperature ${T}_{p},$ the Curie temperature ${T}_{c},$ $\ensuremath{\rho}{(T}_{p}),\ensuremath{\rho}(5\mathrm{K}),$ and the maximum value of magnetoresistance (MR), with respect to lattice parameter and the ionic radii of dopants, are examined. The important findings include an interesting correlation between the maximum MR, the lattice parameter, and the ionic radii, and some distinct features exhibited by Fe, Cu, and Zn dopants.
The influence of transition element (TE) doping on the magnetotransport properties of ${\mathrm{La}}_{0.7}{\mathrm{Ca}}_{0.3}{\mathrm{MnO}}_{3}$ is studied for the entire transition element series ($\mathrm{T}\mathrm{E}=\mathrm{C}\mathrm{r},$ Fe, Co, Ni, Cu, Zn) for a fixed (5% at Mn sites) dopant concentration. The systematics of different properties such as the metal-insulator transition temperature ${T}_{p},$ the Curie temperature ${T}_{c},$ $\ensuremath{\rho}{(T}_{p}),\ensuremath{\rho}(5\mathrm{K}),$ and the maximum value of magnetoresistance (MR), with respect to lattice parameter and the ionic radii of dopants, are examined. The important findings include an interesting correlation between the maximum MR, the lattice parameter, and the ionic radii, and some distinct features exhibited by Fe, Cu, and Zn dopants.