PROPERTIES OF THE TETRAGONAL SUPERCONDUCTOR CABALACU3OX

被引：90

作者：

DELEEUW, DM

MUTSAERS, CAHA

VANHAL, HAM

VERWEIJ, H

CARIM, AH

SMOORENBURG, HCA

机构：

[1] Philips Research Lab, Netherlands

来源：

PHYSICA C | 1988年 / 156卷 / 01期

关键词：

Oxides;

D O I：

10.1016/0921-4534(88)90117-7

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The compound CaBaLaCu3O6.9 is a tetragonal bulk superconductor with a Tc of 80 K. CaBaLaCu3Ox is isomorphic to tetragonal YBa24Cu3Ox in which the Ca and La ions are both located at the Y- and Ba-site. High temperature X-ray diffraction and thermogravimetric measurements show no indication for 'order-disorder' transitions involving the oxygen ions. TEM micrographs of CaBaLaCu3Ox show no evidence for a/b twinning. The oxygen content and the partial oxygen pressure of CaBaLaCu3Ox are determined as a function of temperature. The standard enthalpy change for the oxidation reaction, ΔH, is determined as 190.4(0.3) kJ/mol O2. Transmission electron diffraction patterns show weak but distinct half-order spots indicating an ordering which can be described by a supercell having axes twice as large as the basic unit cell.

引用

收藏

页码：126 / 132

页数：7

相关论文

共 18 条

[1] CRYSTALLOGRAPHY AND MICROSTRUCTURE OF Y1BA2CU3O9-X, A PEROVSKITE-BASED SUPERCONDUCTING OXIDE [J].

BEYERS, R ;

LIM, G ;

ENGLER, EM ;

SAVOY, RJ ;

SHAW, TM ;

DINGER, TR ;

GALLAGHER, WJ ;

SANDSTROM, RL .

APPLIED PHYSICS LETTERS, 1987, 50 (26) :1918-1920

[2] BULK SUPERCONDUCTIVITY AT 91-K IN SINGLE-PHASE OXYGEN-DEFICIENT PEROVSKITE BA2YCU3O9-DELTA [J].

CAVA, RJ ;

BATLOGG, B ;

VANDOVER, RB ;

MURPHY, DW ;

SUNSHINE, S ;

SIEGRIST, T ;

REMEIKA, JP ;

RIETMAN, EA ;

ZAHURAK, S ;

ESPINOSA, GP .

PHYSICAL REVIEW LETTERS, 1987, 58 (16) :1676-1679

[3] COMPOUNDS AND PHASE COMPATIBILITIES IN THE SYSTEM Y2O3-BAO-CUO AT 950-DEGREES-C [J].

DELEEUW, DM ;

MUTSAERS, CAHA ;

LANGEREIS, C ;

SMOORENBURG, HCA ;

ROMMERS, PJ .

PHYSICA C, 1988, 152 (01) :39-49

[4] TWINS AND ORIENTED DOMAINS IN THE ORTHORHOMBIC SUPERCONDUCTOR YBA2CU3O7+/-EPSILON [J].

HERVIEU, M ;

DOMENGES, B ;

MICHEL, C ;

HEGER, G ;

PROVOST, J ;

RAVEAU, B .

PHYSICAL REVIEW B, 1987, 36 (07) :3920-3922

[5] OXYGEN ORDERING AND THE ORTHORHOMBIC-TO-TETRAGONAL PHASE-TRANSITION IN YBA2CU3O7-X [J].

JORGENSEN, JD ;

BENO, MA ;

HINKS, DG ;

SODERHOLM, L ;

VOLIN, KJ ;

HITTERMAN, RL ;

GRACE, JD ;

SCHULLER, IK ;

SEGRE, CU ;

ZHANG, K ;

KLEEFISCH, MS .

PHYSICAL REVIEW B, 1987, 36 (07) :3608-3616

[6] HIGH-TEMPERATURE SUPERCONDUCTIVITY AT 90-K IN ORTHORHOMBIC LABA2CU3OY [J].

MAEDA, A ;

YABE, T ;

UCHINOKURA, K ;

TANAKA, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1987, 26 (08) :L1368-L1370

[7] INFLUENCE OF CA ON THE SUPERCONDUCTIVITY OF Y1-XCAXBA2CU3O7-DELTA [J].

MANTHIRAM, A ;

LEE, SJ ;

GOODENOUGH, JB .

JOURNAL OF SOLID STATE CHEMISTRY, 1988, 73 (01) :278-282

[8] ELECTRON-MICROSCOPY STUDY OF TWIN BEHAVIOR IN GDBA2CU3OX AND YBA2CU3OX [J].

MITCHELL, TE ;

ROY, T ;

SCHWARZ, RB ;

SMITH, JF ;

WOHLLEBEN, D .

JOURNAL OF ELECTRON MICROSCOPY TECHNIQUE, 1988, 8 (03) :317-323

[9] OXYGEN ORDERING AND SUPERCONDUCTIVITY IN LA(BA2-XLAX)CU3O7+DELTA [J].

SEGRE, CU ;

DABROWSKI, B ;

HINKS, DG ;

ZHANG, K ;

JORGENSEN, JD ;

BENO, MA ;

SCHULLER, IK .

NATURE, 1987, 329 (6136) :227-229

[10] CRYSTAL-STRUCTURE AND SUPERCONDUCTING PROPERTIES OF ND1+XBA2-XCU3O7+Y [J].

STEEMAN, RA ;

FRIKKEE, E ;

HELMHOLDT, RB ;

DELEEUW, DM ;

MUTSAERS, CAHA .

PHYSICA C, 1988, 153 :950-951