Temperature and magnetic field dependent transport anisotropies in La0.7Ca0.3MnO3 films

被引：76

作者：

O'Donnell, J

Eckstein, JN

Rzchowski, MS

机构：

[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[2] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

来源：

APPLIED PHYSICS LETTERS | 2000年 / 76卷 / 02期

关键词：

D O I：

10.1063/1.125707

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the temperature and field dependence of anisotropic magnetoresistance (AMR) in fully strained tetragonal thin films of the colossal magnetoresistance manganite La0.7Ca0.3MnO3. The behavior of the AMR is very different from that found in conventional metallic alloys. Its magnitude is peaked near the Curie temperature T-C and becomes small at low temperature. It has two distinct symmetry components: one twofold symmetric about the transport current direction dominant near T-C, the other fourfold symmetric with symmetry axes of the crystal, appearing at low temperature. (C) 2000 American Institute of Physics. [S0003-6951(00)03602-0].

引用

收藏

页码：218 / 220

页数：3

相关论文

共 17 条

[1] HIGH-TEMPERATURE SUPERCONDUCTING MULTILAYERS AND HETEROSTRUCTURES GROWN BY ATOMIC LAYER-BY-LAYER MOLECULAR-BEAM EPITAXY [J].

ECKSTEIN, JN ;

BOZOVIC, I .

ANNUAL REVIEW OF MATERIALS SCIENCE, 1995, 25 :679-709

[2] Anisotropic magnetoresistance in tetragonal La1-xCaxMnO delta thin films [J].

Eckstein, JN ;

Bozovic, I ;

ODonnell, J ;

Onellion, M ;

Rzchowski, MS .

APPLIED PHYSICS LETTERS, 1996, 69 (09) :1312-1314

[3] Colossal magnetoresistance of ferromagnetic manganites: Structural tuning and mechanisms [J].

Fontcuberta, J ;

Martinez, B ;

Seffar, A ;

Pinol, S ;

GarciaMunoz, JL ;

Obradors, X .

PHYSICAL REVIEW LETTERS, 1996, 76 (07) :1122-1125

[4] ANISOTROPIC MAGNETORESISTANCE WITH CUBIC ANISOTROPY AND WEAK FERROMAGNETISM - A NEW PARADIGM [J].

MALOZEMOFF, AP .

PHYSICAL REVIEW B, 1986, 34 (03) :1853-1863

[5] ANISOTROPIC MAGNETORESISTANCE OF AMORPHOUS AND CONCENTRATED POLYCRYSTALLINE IRON-ALLOYS [J].

MALOZEMOFF, AP .

PHYSICAL REVIEW B, 1985, 32 (09) :6080-6083

[6] Magnetoelastic coupling and magnetic anisotropy in La0.67Ca0.33MnO3 films [J].

O'Donnell, J ;

Rzchowski, MS ;

Eckstein, JN ;

Bozovic, I .

APPLIED PHYSICS LETTERS, 1998, 72 (14) :1775-1777

[7] Anisotropic properties of molecular beam epitaxy-grown colossal magnetoresistance manganite thin films [J].

ODonnell, J ;

Onellion, M ;

Rzchowski, MS ;

Eckstein, JN ;

Bozovic, I .

JOURNAL OF APPLIED PHYSICS, 1997, 81 (08) :4961-4963

[8] Magnetoresistance scaling in MBE-grown La0.7Ca0.3MnO3 thin films [J].

ODonnell, J ;

Onellion, M ;

Rzchowski, MS ;

Eckstein, JN ;

Bozovic, I .

PHYSICAL REVIEW B, 1996, 54 (10) :R6841-R6844

[9] Low-field magnetoresistance in tetragonal La1-xCaxMnO3 films [J].

ODonnell, J ;

Onellion, M ;

Rzchowski, MS ;

Eckstein, JN ;

Bozovic, I .

PHYSICAL REVIEW B, 1997, 55 (09) :5873-5879

[10] INFLUENCE OF SPIN-ORBIT-COUPLING ON THE TRANSPORT AND MAGNETIC-PROPERTIES OF CO3PD97 [J].

STAMPE, PA ;

KUNKEL, HP ;

WANG, Z ;

WILLIAMS, G .

PHYSICAL REVIEW B, 1995, 52 (01) :335-342