Magnetic pinning effects of epitaxial LaxSr1-xMnO3 nanostructured thin films on YBa2Cu3O7-δ layers

被引：18
|
作者：
Petrisor, T., Jr. [1 ,2 ]
Gabor, M. S. [1 ]
Tiusan, C. [1 ,2 ]
Galluzzi, V. [3 ]
Celentano, G. [3 ]
Popa, S. [4 ]
Boulle, A. [5 ]
Petrisor, T. [1 ]
机构：
[1] Tech Univ Cluj Napoca, Ctr Superconduct Spintron & Surface Sci C4S, Cluj Napoca 400114, Romania
[2] Nancy Univ, Inst Jean Lamour, CNRS, UMR 7198, Vandoeuvre Les Nancy, France
[3] Assoc EURATOM ENEA Fus, Frascati Res Ctr, I-00044 Rome, Italy
[4] Natl Inst Mat Phys, Bucharest 077125, Magurele, Romania
[5] Ctr Europeen Ceram, CNRS, UMR 6638, F-87068 Limoges, France
来源：
JOURNAL OF APPLIED PHYSICS | 2012年 / 112卷 / 05期
关键词：
STRAIN FIELDS; LA0.7SR0.3MNO3; ANISOTROPY; SINGLE;
D O I：
10.1063/1.4748049
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The present paper presents the effects of a nanostructured, ferromagnetic La1-xSrxMnO3(LSMO) thin film on the pinning characteristics of an epitaxial YBa2Cu3O7(YBCO) thin film deposited on top. Ordered arrays of LSMO grains were obtained upon growing the film on a terraced (001) SrTiO3 substrate. The analyses of magnetic measurements revealed the presence of a complex vortex pinning mechanism within the YBCO film. With respect to a reference single YBCO layer, an additional pinning potential was observed. Its temperature evolution suggests that a magnetic pinning mechanism is responsible for improved pinning characteristics in the high temperature and field region. Based on the morphology of the underlying LSMO buffer, a strong pinning force is expected to arise due to the anti-dot formations, where a high magnetization gradient exists. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4748049]
引用
收藏
页数：7
相关论文
共 50 条
  • [21] Critical current density and flux pinning in vortex liquid regime for YBa2Cu3O7-δ epitaxial thin films
    Cao, XW
    Wang, ZH
    Li, KB
    PHYSICA C, 1998, 305 (1-2): : 68 - 74
  • [22] Magnetic instability in YBa2Cu3O7-δ films
    Bolz, U
    Eisenmenger, J
    Schiessling, J
    Runge, BU
    Leiderer, P
    PHYSICA B, 2000, 284 : 757 - 758
  • [23] Effect of columnar defects on the critical current anisotropy of epitaxial YBa2Cu3O7-δ thin films and YBa2Cu3O7-δ/PrBa2Cu3O7-δ multilayers
    Holzapfel, B., 1600, (195): : 1 - 2
  • [24] The noise power spectral density in thin epitaxial YBa2Cu3O7-δ films
    Labrag, A
    Taoufik, A
    Senoussi, S
    Ramzi, A
    PHYSICA STATUS SOLIDI C: MAGNETIC AND SUPERCONDUCTING MATERIALS, PROCEEDINGS, 2004, 1 (07): : 1904 - 1907
  • [25] Nanoindentation of multilayered epitaxial YBa2Cu3O7-δ thin films and coated conductors
    Roa, J. J.
    Jimenez-Pique, E.
    Puig, T.
    Obradors, X.
    Segarra, M.
    THIN SOLID FILMS, 2011, 519 (08) : 2470 - 2476
  • [26] Microstructures of epitaxial thin films of YBa2Cu3O7-δ deposited on silicon wafers
    Mai, ZH
    Chen, XM
    Wang, Y
    Gao, J
    Li, TK
    Wong, HY
    Zheng, WL
    Jia, QJ
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2003, 16 (05): : 590 - 594
  • [27] Scaling of thermally activated dissipation in epitaxial YBa2Cu3O7-δ thin films
    Wang, ZH
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1999, 12 (07): : 421 - 425
  • [28] Scaling of thermally activated dissipation in epitaxial YBa2Cu3O7-δ thin films
    Wang, Z.H.
    Superconductor Science and Technology, 1999, 12 (07): : 421 - 425
  • [29] Nanoparticulate flux pinning Centers for YBa2Cu3O7-δ films
    Barnes, Paul N.
    Kell, Joseph W.
    Harrison, Brandon C.
    Haugan, Timothy J.
    Burke, Jack L.
    Varanasi, Chakrapani V.
    IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2007, 17 (02) : 3717 - 3719
  • [30] MAGNETIC-FLUX PINNING IN EPITAXIAL YBA2CU3O7-DELTA THIN-FILMS
    ROSHKO, A
    GOODRICH, LF
    RUDMAN, DA
    MOERMAN, R
    VALE, LR
    JOURNAL OF ELECTRONIC MATERIALS, 1995, 24 (12) : 1919 - 1922
12345