Fabrication and characterization of heteroepitaxial bilayers of La-Ca-Mn-O/Y-Ba-Cu-O

被引：5
作者：
Tang, WH
Kam, TL
So, SM
Gao, J
Chen, XM
Liu, CX
Mai, ZH
机构：
[1] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
[2] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
[3] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2002年 / 37卷 / 15期
关键词：
superconductors; thin films; epitaxial growth; sputtering; electrical properties;
D O I：
10.1016/S0025-5408(01)00781-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have fabricated La0.67Ca0.33MnO3/YBa2Cu3Oy heteroepitaxial bilayers on SrTiO3 (1 0 0) substrates by rf magnetron sputtering. The La0.67Ca0.33MnO3/YBa2Cu3Oy bilayers were characterized by X-ray diffraction, rocking curve measurements, scanning electron microscope and dc four-probe measurements. Both La0.67Ca0.33MnO3 and YBa2Cu3Oy layers show excellent crystallinity indicated. by their sharp and narrow rocking curves. The La0.67Ca0.33MnO3/YBa2Cu3Oy bildyers exhibit a very smooth surface. The relation between the superconducting critical current density of YBa(2)Cu(3)O(y)and temperature was alsoinvestigated. (C) 2002 Elsevier Science Ltd. All rights reserved.
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收藏
页码：2531 / 2538
页数：8
相关论文
共 14 条
[1]   HIGH CRITICAL CURRENT-DENSITY ULTRATHIN YBA2CU3OX FILMS MADE BY A MODIFIED RF-MAGNETRON SPUTTERING TECHNIQUE [J].
GAO, J ;
HAUSER, B ;
ROGALLA, H .
JOURNAL OF APPLIED PHYSICS, 1990, 67 (05) :2512-2515
[2]   THOUSANDFOLD CHANGE IN RESISTIVITY IN MAGNETORESISTIVE LA-CA-MN-O FILMS [J].
JIN, S ;
TIEFEL, TH ;
MCCORMACK, M ;
FASTNACHT, RA ;
RAMESH, R ;
CHEN, LH .
SCIENCE, 1994, 264 (5157) :413-415
[3]   Structural studies of NixFe100-x/Mo magnetic multilayers by x-ray small-angle reflection and high-angle diffraction [J].
Luo, GM ;
Yan, ML ;
Mai, ZH ;
Lai, WY ;
Wang, YT .
PHYSICAL REVIEW B, 1997, 56 (06) :3290-3295
[4]   Lattice effects in magnetoresistive manganese perovskites [J].
Millis, AJ .
NATURE, 1998, 392 (6672) :147-150
[5]   X-RAY TOTAL EXTERNAL REFLECTANCE DIFFRACTION AS A PROBE OF THE STRUCTURE OF THE LIQUID VAPOR INTERFACE [J].
MOHANTY, U ;
RICE, SA .
JOURNAL OF CHEMICAL PHYSICS, 1983, 79 (05) :2482-2486
[6]  
Newton RG., 2013, Scattering theory of waves and particles
[7]   SURFACE STUDIES OF SOLIDS BY TOTAL REFLECTION OF X-RAYS [J].
PARRATT, LG .
PHYSICAL REVIEW, 1954, 95 (02) :359-369
[8]   Effects of film thickness and lattice mismatch on strain states and magnetic properties of La0.8Ca0.2MnO3 thin films [J].
Rao, RA ;
Lavric, D ;
Nath, TK ;
Eom, CB ;
Wu, L ;
Tsui, F .
JOURNAL OF APPLIED PHYSICS, 1999, 85 (08) :4794-4796
[9]   Spin conductivity and spin-charge separation in the high-T-c cuprates [J].
Si, QM .
PHYSICAL REVIEW LETTERS, 1997, 78 (09) :1767-1770
[10]   Critical current suppression in a superconductor by injection of spin-polarized carriers from a ferromagnet [J].
Vasko, VA ;
Larkin, VA ;
Kraus, PA ;
Nikolaev, KR ;
Grupp, DE ;
Nordman, CA ;
Goldman, AM .
PHYSICAL REVIEW LETTERS, 1997, 78 (06) :1134-1137
12