DEFECT THERMODYNAMICS OF ND2-XCEXCUO4-DELTA

被引：13

作者：

IDEMOTO, Y

FUEKI, K

机构：

[1] Department of Industrial Chemistry, Science University of Tokyo, Chiba, 278, Noda

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1991年 / 30卷 / 10期

关键词：

HIGH TC SUPERCONDUCTOR; OXYGEN NONSTOICHIOMETRY; THERMODYNAMICS; DEFECT; COPPER VALENCE; ND2-XCEXCUO4-DELTA MASTER CURVE;

D O I：

10.1143/JJAP.30.2471

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The oxygen deficit delta of Nd2-xCexCuO4-delta with x = 0, 0.05 and 0.15 was determined as a function of oxygen partial pressure (Po2) at various temperatures. When the delta-log Po2 curve at a specified temperature was chosen and the curves for other temperatures were shifted along the abscissa, all the measured data were found to form a single smooth curve, which is called a master curve. A theoretical equation providing delta as functions of Po2 and cerium concentration was derived. The calculated curve was found to be in good agreement with the master curve.

引用

页码：2471 / 2476

页数：6

共 6 条

[1] OXYGEN NONSTOICHIOMETRY OF A Y(BA1-XSRX)2CU3O7-DELTA SUPERCONDUCTOR [J].

FUEKI, K ;

IDEMOTO, Y ;

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PHYSICA C, 1990, 166 (3-4) :261-265

[2] CHARACTERIZATION OF ELECTRON SUPERCONDUCTING AND RELATED ND2-XCEXCUO4+Y,ND2-XTHXCUO4+Y COMPOUNDS [J].

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JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1989, 28 (10) :L1760-L1762

[3] DEFECT THERMODYNAMICS OF (LA1-XSRX)2CUO4-DELTA SUPERCONDUCTING OXIDE [J].

IDEMOTO, Y ;

FUEKI, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1990, 29 (12) :2725-2728

[4] OXYGEN NONSTOICHIOMETRY AND VALENCES OF BISMUTH AND COPPER IN BI2.00SR1.88CA1.00CU2.14OY [J].

IDEMOTO, Y ;

FUEKI, K .

PHYSICA C, 1990, 168 (1-2) :167-172

[5] T-LOG PO2 DIAGRAM AND COPPER VALENCE OF ND1.85CE0.15CUO4-DELTA [J].

IDEMOTO, Y ;

FUEKI, K ;

SHINBO, T .

PHYSICA C, 1990, 166 (5-6) :513-517

[6] DETERMINATION OF OXYGEN NONSTOICHIOMETRY IN A HIGH-TC SUPERCONDUCTOR BA2YCU3O7-DELTA [J].

KISHIO, K ;

SHIMOYAMA, JI ;

HASEGAWA, T ;

KITAZAWA, K ;

FUEKI, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1987, 26 (07) :L1228-L1230

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