SOME EXPERIMENTAL-EVIDENCE CONCERNING THE LOCATION OF THE OI-OII PHASE-BOUNDARY IN YBA2CU3OZ

被引：13

作者：

GERDANIAN, P

PICARD, C

机构：

[1] URA 446, Laboratoire des Composés Non-Stoechiométriques, Université de Paris-Sud, 91405 Orsay Cédex

来源：

PHYSICA C | 1993年 / 204卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(93)91029-U

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements of the Seebeck coefficient S versus T at constant composition z are presented for 6.400 less-than-or-equal-to z less-than-or-equal-to 6.600 and T < 750 K. These curves present two singularities. The one at the higher temperature, T1, is clearly linked to the 0-T transition. The other, at T2, is supposed to be related to the OI-OII phase boundary as suggested by the pecularities of the T2 versus z curve which is approximately symmetrical with a maximum at z almost-equal-to 6.5.

引用

页码：419 / 424

页数：6

共 20 条

[1] OXYGEN VACANCY ORDERING AND NON STOICHIOMETRY IN THE BA2YCU3O7-X SUPERCONDUCTORS [J].

ALARIOFRANCO, MA ;

CHAILLOUT, C ;

CAPPONI, JJ ;

CHENAVAS, J .

MATERIALS RESEARCH BULLETIN, 1987, 22 (12) :1685-1693

[2] THE STRUCTURAL PHASE-DIAGRAM AND OXYGEN EQUILIBRIUM PARTIAL-PRESSURE OF YBA2CU3O6+X STUDIED BY NEUTRON POWDER DIFFRACTION AND GAS VOLUMETRY [J].

ANDERSEN, NH ;

LEBECH, B ;

POULSEN, HF .

PHYSICA C, 1990, 172 (1-2) :31-42

[3] OXYGEN-VACANCY PHASE-EQUILIBRIA IN YBA2CU3OZ CALCULATED BY THE CLUSTER VARIATION METHOD [J].

BERERA, A ;

DEFONTAINE, D .

PHYSICAL REVIEW B, 1989, 39 (10) :6727-6736

[4] SINGLE-PHASE 60-K BULK SUPERCONDUCTOR IN ANNEALED BA2YCU3O7-DELTA(0.3-LESS-THAN-DELTA-LESS-THAN-0.4) WITH CORRELATED OXYGEN VACANCIES IN THE CU-O CHAINS [J].

CAVA, RJ ;

BATLOGG, B ;

CHEN, CH ;

RIETMAN, EA ;

ZAHURAK, SM ;

WERDER, D .

PHYSICAL REVIEW B, 1987, 36 (10) :5719-5722

[5] STABILITY ANALYSIS OF SPECIAL-POINT ORDERING IN THE BASAL-PLANE IN YBA2CU3O7-DELTA [J].

DEFONTAINE, D ;

WILLE, LT ;

MOSS, SC .

PHYSICAL REVIEW B, 1987, 36 (10) :5709-5712

[6]

GERDANIAN P, 1991, PHYSICA C, V182, P11, DOI 10.1016/0921-4534(91)90449-9

[7] PHASE-DIAGRAM OF THE SUPERCONDUCTING OXIDE YBA2CU3O6+DELTA [J].

KHACHATURYAN, AG ;

SEMENOVSKAYA, SV ;

MORRIS, JW .

PHYSICAL REVIEW B, 1988, 37 (04) :2243-2246

[8] LOW-TEMPERATURE BEHAVIOR OF THE YBA2CU3O6+2X PHASE-DIAGRAM [J].

KIKUCHI, R ;

CHOI, JS .

PHYSICA C, 1989, 160 (3-4) :347-351

[9] DETERMINATION OF THE ORTHORHOMBIC-TETRAGONAL YBA2CU3O7-DELTA PHASE-BOUNDARY IN THE DELTA-T DIAGRAM [J].

KUBO, Y ;

NAKABAYASHI, Y ;

TABUCHI, J ;

YOSHITAKE, T ;

OCHI, A ;

UTSUMI, K ;

IGARASHI, H ;

YONEZAWA, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1987, 26 (11) :L1888-L1891

[10] CHAIN-PLANE OXYGEN REARRANGEMENT IN YBA2CU3OZ AT ROOM-TEMPERATURE - THERMODYNAMIC-EQUILIBRIUM MAY BE OBTAINED IN A REASONABLE PERIOD OF TIME [J].

PICARD, C ;

GERDANIAN, P .

PHYSICA C, 1992, 196 (3-4) :297-306

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