Low-temperature transport in La0.5Ca0.4Li0.1MnO3 manganite in high magnetic fields (1 T ⩽ H ⩽ 14 T)
- 作者: Gamzatov A.G.1, Gadzhimuradov T.A.1, Li R.2,3, Pi L.2, Zhang Y.2
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隶属关系:
- Amirkhanov Institute of Physics, Dagestan Scientific Center
- High Magnetic Field Laboratory
- Department of Physics and Electronic Engineering
- 期: 卷 122, 编号 1 (2016)
- 页面: 151-158
- 栏目: Electronic Properties of Solid
- URL: https://journals.rcsi.science/1063-7761/article/view/189713
- DOI: https://doi.org/10.1134/S1063776116010015
- ID: 189713
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详细
The low-temperature minimum of the resistivity of La0.5Ca0.4Li0.1MnO3 manganite in high magnetic fields (up to 14 T) is analyzed quantitatively. It is shown that the behavior of the resistivity and magnetoresistance at low temperatures is successfully described by the model of intergrain spin-polarized tunnel charge transfer. In accordance with this model, the resistivity is expressed in terms of the correlation function of magnetizations of neighboring grains. The expression for the temperature- and magnetic-field dependences of this correlator, derived in [31], is thoroughly analyzed and applied for the polycrystalline manganite sample under investigation. The main parameters of the chosen model are obtained from analysis of experimental data.
作者简介
A. Gamzatov
Amirkhanov Institute of Physics, Dagestan Scientific Center
编辑信件的主要联系方式.
Email: gamzatov_adler@mail.ru
俄罗斯联邦, Makhachkala, 367003
T. Gadzhimuradov
Amirkhanov Institute of Physics, Dagestan Scientific Center
Email: gamzatov_adler@mail.ru
俄罗斯联邦, Makhachkala, 367003
Renwen Li
High Magnetic Field Laboratory; Department of Physics and Electronic Engineering
Email: gamzatov_adler@mail.ru
中国, Hefei, 230031; Hefei, 230061
Li Pi
High Magnetic Field Laboratory
Email: gamzatov_adler@mail.ru
中国, Hefei, 230031
Yuheng Zhang
High Magnetic Field Laboratory
Email: gamzatov_adler@mail.ru
中国, Hefei, 230031
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