Anisotropic magnetoresistive and magnetic properties of La0.5Sr0.5CoO3-δ film

被引：3
作者：
Belevtsev, BI
Krasovitsky, VB
Panfilov, AS
Chukanova, IN
机构：
[1] Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
[2] Natl Acad Sci Ukraine, Inst Single Crystals, UA-61001 Kharkov, Ukraine
来源：
LOW TEMPERATURE PHYSICS | 2003年 / 29卷 / 07期
关键词：
D O I：
10.1063/1.1596581
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetic and transport properties of a La0.5Sr0.5CoO3-delta film grown on a LaAlO3 substrate by pulsed-laser deposition are studied. The properties are found to be influenced by the magnetic anisotropy and inhomogeneity. Magnetoresistance anisotropy is determined by the shape anisotropy of the magnetization and the strain-induced magnetic anisotropy due to the film-substrate lattice interaction. Indications of the temperature-driven spin reorientation transition from an out-of-plane ordered state at low temperatures to an in-plane ordered state at high temperatures as a result of competition between the aforementioned sources of magnetic anisotropy are found. (C) 2003 American Institute of Physics.
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页码：566 / 570
页数：5
相关论文
共 17 条
[1]   The nature of the low-temperature minimum of resistivity in ceramic manganites [J].
Auslender, MI ;
Rozenberg, E ;
Kar'kin, AE ;
Chaudhuri, BK ;
Gorodetsky, G .
JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 326 (1-2) :81-84
[2]   Direct-current transport properties of and microwave absorption in a bulk ceramic sample and a film of La0.5Sr0.5CoO3-δ:: magnetic inhomogeneity effects [J].
Belevtsev, BI ;
Cherpak, NT ;
Chukanova, IN ;
Gubin, AI ;
Krasovitsky, VB ;
Lavrinovich, AA .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (10) :2591-2603
[3]  
Belevtsev BI, 2001, PHYS STATUS SOLIDI A, V188, P1187, DOI 10.1002/1521-396X(200112)188:3<1187::AID-PSSA1187>3.0.CO
[4]  
2-5
[5]   Mixed-valence manganites [J].
Coey, JMD ;
Viret, M ;
von Molnár, S .
ADVANCES IN PHYSICS, 1999, 48 (02) :167-293
[6]   Colossal magnetoresistant materials: The key role of phase separation [J].
Dagotto, E ;
Hotta, T ;
Moreo, A .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2001, 344 (1-3) :1-153
[7]   Conduction channels and magnetoresistance in polycrystalline manganites [J].
de Andrés, A ;
García-Hernández, M ;
Martínez, JL .
PHYSICAL REVIEW B, 1999, 60 (10) :7328-7334
[8]   Defect-induced spin disorder and magnetoresistance in single-crystal and polycrystal rare-earth manganite thin films [J].
Evetts, JE ;
Blamire, MG ;
Mathur, ND ;
Isaac, SP ;
Teo, BS ;
Cohen, LF ;
Macmanus-Driscoll, JL .
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1998, 356 (1742) :1593-1613
[9]  
Gupta A, 1998, COLOSSAL MAGNETORESISTANCE, CHARGE ORDERING AND RELATED PROPERTIES OF MANGANESE OXIDES, P189
[10]   Influence of single-ion anisotropy fluctuations on temperature-driven reorientation transition in two-dimensional ferromagnets [J].
Hu, LB ;
Li, HJ ;
Tao, RB .
APPLIED PHYSICS LETTERS, 1999, 74 (15) :2221-2223
12