In situ growth and doping of oxycarbonate Sr2CuO2(CO3) epitaxial thin films

被引:6
作者
Chang, KW
Wessels, BW [1 ]
Qian, W
Dravid, VP
Schindler, JL
Kannewurf, CR
Studebaker, DB
Marks, TJ
Feenstra, R
机构
[1] Northwestern Univ, Dept Mat Sci & Engn, Sci & Technol Ctr Superconduct, Evanston, IL 60208 USA
[2] Northwestern Univ, Dept Elect & Comp Engn, Sci & Technol Ctr Superconduct, Evanston, IL 60208 USA
[3] Northwestern Univ, Dept Chem, Sci & Technol Ctr Superconduct, Evanston, IL 60208 USA
[4] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA
来源
PHYSICA C | 1998年 / 303卷 / 1-2期
基金
美国国家科学基金会;
关键词
chemical vapor deposition; oxycarbonate thin films; transport properties; RBS spectroscopy; infrared spectroscopy; TEM;
D O I
10.1016/S0921-4534(98)00218-4
中图分类号
O59 [应用物理学];
学科分类号
摘要
Epitaxial cuprate oxycarbonate Sr2CuO2(CO3) thin films have been prepared by metal-organic chemical vapor deposition. The effects of deposition conditions on phase stability have been determined. X-ray diffraction, transmission electron microscopy, Rutherford backscattering spectroscopy, inductively coupled plasma atomic emission spectroscopy, and Fourier transform infrared spectroscopy were used to characterize the oxycarbonate thin films. The resistivity of the undoped Sr2CuO2(CO3) thin films decreases from similar to 0.2 Omega cm to similar to 0.01 Omega cm upon post annealing in oxygen, but semiconducting behavior is observed. Doping has been achieved through partial substitution of BO33- for CO32-. Superconductivity with a T-c ((onset)) of 34 K and a T-c(zero) of 20 K has been obtained. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:11 / 20
页数:10
相关论文
共 23 条
[1]   INCORPORATION OF CARBON INTO INFINITE-LAYER BACUO2 FILMS AND FORMATION OF SUPERCONDUCTING PHASE [J].
ADACHI, H ;
SAKAI, M ;
SATOH, T ;
SETSUNE, K .
PHYSICA C, 1995, 244 (3-4) :282-286
[2]   SUPERCONDUCTIVITY IN THE NEW COMPOUND (Y1-XCAX)0.95SR2.05CU2.4(CO3)0.6OY [J].
AKIMITSU, J ;
UEHARA, M ;
OGAWA, M ;
NAKATA, H ;
TOMIMOTO, K ;
MIYAZAKI, Y ;
YAMANE, H ;
HIRAI, T ;
KINOSHITA, K ;
MATSUI, Y .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1992, 201 (3-4) :320-324
[3]   A NEW FAMILY OF SUPERCONDUCTORS CONTAINING CARBONATE GROUP [J].
AKIMITSU, J ;
NAKATA, H ;
UEHARA, M .
JOURNAL OF SUPERCONDUCTIVITY, 1994, 7 (01) :19-22
[4]   THE 1ST SUPERCONDUCTING THIN-FILM OXYCARBONATES - COHERENT INTERGROWTH OF SEVERAL MEMBERS OF A NEW STRUCTURAL SERIES (CACUO2)M(BA2CUO2CO3)N [J].
ALLEN, JL ;
MERCEY, B ;
PRELLIER, W ;
HAMET, JF ;
HERVIEU, M ;
RAVEAU, B .
PHYSICA C, 1995, 241 (1-2) :158-166
[5]   Epitaxial growth of (Sr1-xCax)CuO2 thin film with the infinite-layer structure by metal-organic chemical vapor deposition [J].
Chang, KW ;
Wessels, BW ;
Studebaker, D ;
Marks, TJ .
APPLIED PHYSICS LETTERS, 1996, 69 (13) :1951-1953
[6]   SUPERCONDUCTIVITY IN EPITAXIAL-FILMS OF THE OXYCARBONATE SR2CUO2(CO3) CONVERTED FROM INFINITE-LAYER SRCUO2 BY THERMAL-PROCESSING [J].
FEENSTRA, R ;
BUDAI, JD ;
CHRISTEN, DK ;
KAWAI, T .
APPLIED PHYSICS LETTERS, 1995, 67 (09) :1310-1312
[7]   A 62-K SUPERCONDUCTOR WITH AN ORIGINAL STRUCTURE - SR4-XBAXTLCU2CO3O7 [J].
GOUTENOIRE, F ;
HERVIEU, M ;
MAIGNAN, A ;
MICHEL, C ;
MARTIN, C ;
RAVEAU, B .
PHYSICA C, 1993, 210 (3-4) :359-366
[8]   NEW OXYCARBONATE SUPERCONDUCTORS (CU0.5C0.5)BA2CAN-1CUNO2N+3 (N=3,4) PREPARED AT HIGH-PRESSURE [J].
KAWASHIMA, T ;
MATSUI, Y ;
TAKAYAMAMUROMACHI, E .
PHYSICA C, 1994, 224 (1-2) :69-74
[9]   A NEW COPPER-OXIDE SUPERCONDUCTOR CONTAINING CARBON [J].
KINOSHITA, K ;
YAMADA, T .
NATURE, 1992, 357 (6376) :313-315
[10]   CRITICAL-CURRENT DENSITIES AND IRREVERSIBILITY LINES OF NEW OXYCARBONATE SUPERCONDUCTORS (CU0.5C0.5)BA2CAN-1CUNO2N+3 (N=3, 4) [J].
KUMAKURA, H ;
TOGANO, K ;
KAWASHIMA, T ;
TAKAYAMAMUROMACHI, E .
PHYSICA C, 1994, 226 (3-4) :222-226