Step-edge magnetoresistance in La0.7Ca0.3MnO3 films

被引：67
|
作者：
Ziese, M [1 ]
Heydon, G
Höhne, R
Esquinazi, P
Dienelt, J
机构：
[1] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England
[2] Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England
[3] Univ Leipzig, Dept Superconduct & Magnetism, D-04103 Leipzig, Germany
[4] Inst Surface Modificat, D-04318 Leipzig, Germany
来源：
APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 10期
关键词：
D O I：
10.1063/1.123587
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetoresistance of step-edge structures in La0.7Ca0.3MnO3 films was investigated. Step- edge arrays with 200 steps of height 140-200 nm and step separation 20 mu m along [110] were fabricated on LaAlO3 substrates by chemically assisted ion-beam etching. Thin La0.7Ca0.3MnO3 films were deposited on the structured substrates by pulsed-laser deposition. Measurements of the large low-field magnetoresistance, the dynamic conductance, and the anisotropic magnetoresistance lead to the proposal of a model of spin-polarized tunneling in a ferromagnet/spin-glass/ferromagnet geometry. (C) 1999 American Institute of Physics. [S0003-6951(99)04410-1].
引用
收藏
页码：1481 / 1483
页数：3
相关论文
共 50 条
  • [31] Room-temperature tunneling magnetoresistance in La0.7Sr0.3MnO3 step-edge junctions
    Wang, LM
    Liu, CC
    Yang, HC
    Horng, HE
    JOURNAL OF APPLIED PHYSICS, 2004, 95 (09) : 4928 - 4933
  • [32] Electrical transport in strained La0.7Ca0.3MnO3 films
    Markovich, V
    Vlakhov, ES
    Yuzhelevskii, Y
    Blagoev, LB
    Nenkov, KA
    Gorodetsky, G
    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO1, 2006, 3 (01): : 61 - +
  • [33] Microstructural characteristics of La0.7Ca0.3MnO3 films and multilayers
    Wang, MG
    Li, DX
    He, LL
    Ye, HQ
    Xiong, GC
    JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2000, 16 (06) : 601 - 604
  • [34] Sign reversal of anisotropic magnetoresistance in La0.7Ca0.3MnO3/SrTiO3 ultrathin films
    Sharma, Himanshu
    Tulapurkar, A.
    Tomy, C. V.
    APPLIED PHYSICS LETTERS, 2014, 105 (22)
  • [35] Wide colossal magnetoresistance around room temperature in La0.7Ca0.3MnO3/La0.7Sr0.3MnO3 composite
    Hong, CS
    Kim, WS
    Hur, NH
    SOLID STATE COMMUNICATIONS, 2002, 121 (12) : 657 - 660
  • [36] Extraordinary Hall effect in La0.7Ca0.3MnO3 and La0.7Ba0.3MnO3 thin films
    Ziese, M
    Srinitiwarawong, C
    EUROPHYSICS LETTERS, 1999, 45 (02): : 256 - 262
  • [37] Tunnel magnetoresistance in La0.7Ca0.3MnO3/PrBa2Cu3O7/La0.7Ca0.3MnO3 -: art. no. 022512
    Sefrioui, Z
    Cros, V
    Barthélémy, A
    Peña, V
    León, C
    Santamaria, J
    Varela, M
    Pennycook, SJ
    APPLIED PHYSICS LETTERS, 2006, 88 (02) : 1 - 3
  • [38] Influence of chemical prehistory on the colossal magnetoresistance of La0.7Ca0.3MnO3 ceramics
    Shlyakhtin, OA
    Oh, YJ
    Tretyakov, YD
    SOLID STATE COMMUNICATIONS, 1999, 111 (12) : 711 - 715
  • [39] Electron microscopy of La0.7Ca0.3MnO3
    Arita, M
    Hamada, K
    Okada, A
    Asano, H
    Matsui, M
    Shibayama, T
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2005, 44 (1A): : 304 - 308
  • [40] The theory analysis of the field dependence of the magnetoresistance of La0.7Ca0.3MnO3 film
    Ren, SW
    Jiang, EY
    Kim, YJ
    Li, ZQ
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 237 (01) : 55 - 60
12345