Low-temperature transport in La0.5Ca0.4Li0.1MnO3 manganite in high magnetic fields (1 T ≤ H ≤ 14 T)

被引：2

作者：

Gamzatov, A. G. ^{[1
]}

Gadzhimuradov, T. A. ^{[1
]}

Li, Renwen ^{[2
,3
]}

Pi, Li ^{[2
]}

Zhang, Yuheng ^{[2
]}

机构：

[1] Russian Acad Sci, Dagestan Sci Ctr, Amirkhanov Inst Phys, Makhachkala 367003, Russia

[2] Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China

[3] Hefei Normal Univ, Dept Phys & Elect Engn, Hefei 230061, Peoples R China

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2016年 / 122卷 / 01期

关键词：

RESISTIVITY MINIMUM; GRAIN-BOUNDARIES; COULOMB-BLOCKADE; MAGNETORESISTANCE; RESISTANCE;

D O I：

10.1134/S1063776116010015

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页码：151 / 158

页数：8

共 23 条

[1] Low-Temperature Intergranular Spin Transport in La0.5Ca0.4Li0.1MnO3 Manganite Under High Magnetic Field (1T ≤ H ≤ 14 T)
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JOURNAL OF LOW TEMPERATURE PHYSICS, 2016, 185 (5-6) : 590 - 596
[2] Comment on "Magnetic and magnetoresistance in half-doped manganite La0.5Ca0.5MnO3 and La0.5Ca0.4Ag0.1MnO3"
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[3] Magnetic and electrical studies on La0.4Sm0.1Ca0.5MnO3 charge ordered manganite
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[4] Electronic structure and room temperature colossal magnetodielectric effect in La 0.4 Dy 0.1 Ca 0.5 MnO 3 manganite
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[5] Room temperature colossal magnetodielectric effect in La0.4Gd0.1Ca0.5MnO3
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[6] Transport and magnetoresistance studies on polycrystalline La0.4Dy0.1Ca0.5MnO3: Role of phase separation
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[7] Origin of the Griffiths phase and correlation with the magnetic phase transition in the nanocrystalline manganite La0.4(Ca0.5Sr0.5)0.6MnO3
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[8] Influence of insolubility of silver on the Hirshfeld surface analyses and magnetic behavior of La0.5Ca0.1Ag0.4MnO3 compound
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[9] Robust temperature coefficient of resistance of polycrystalline La0.6Ca0.4MnO3 under magnetic fields at room temperature
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[10] Electrical transport studies on the La0.7-xPrxBa0.3MnO3 (x=0, 0.1 and 0.2) manganite: Double metal-insulator transitions and low-temperature resistivity minimum
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Dhahri, E.
Hlil, E. K.
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