DIFFERENCES IN EFFECTS OF OXYGEN PARTIAL-PRESSURE ON YBA2CU3O7-X GROWTH BETWEEN INSITU AND EXSITU PROCESSES

被引：3

作者：

HASE, T

KITA, R

KAWAGUCHI, K

KOGA, T

MORISHITA, T

机构：

[1] Superconductivity Research Laboratory, International Superconductivity Technology Center, Koto-Ku, Tokyo, 135

来源：

PHYSICA C | 1993年 / 207卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(93)90423-N

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The growth conditions of YBa2Cu3O7-x thin films synthesized by in situ and ex situ processes are compared in a phase diagram of oxygen partial pressure p(O2) and temperature. In in situ pulsed laser deposition, as-deposited films cooled down in vacuo show the highest crystallinity in the case of formation at p(O2) which corresponds to that just above a CuO-Cu2O-O2 thermal equilibrium line. In contrast, the crystallinity of films synthesized ex situ from contamination-free Y-Ba-Cu-O precursors is improved by decreasing p(O2) during crystallization down to the YBa2Cu3O6.0 stability line. Such a difference in the optimum conditions is related to the formation of Cu2O.

引用

收藏

页码：58 / 64

页数：7

相关论文

共 20 条

[1] QUATERNARY PHASE-RELATIONS NEAR YBA2CU3O6+X AT 850-DEGREES-C IN REDUCED OXYGEN PRESSURES [J].

AHN, BT ;

LEE, VY ;

BEYERS, R ;

GUR, TM ;

HUGGINS, RA .

PHYSICA C, 1990, 167 (5-6) :529-537

[2] STABILITY LIMITS OF THE PEROVSKITE STRUCTURE IN THE Y-BA-CU-O SYSTEM [J].

BORMANN, R ;

NOLTING, J .

APPLIED PHYSICS LETTERS, 1989, 54 (21) :2148-2150

[3] 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

[4] SYNTHESIS AND PROPERTIES OF YBA2CU3O7 THIN-FILMS GROWN INSITU BY 90-DEGREES OFF-AXIS SINGLE MAGNETRON SPUTTERING [J].

EOM, CB ;

SUN, JZ ;

LAIRSON, BM ;

STREIFFER, SK ;

MARSHALL, AF ;

YAMAMOTO, K ;

ANLAGE, SM ;

BRAVMAN, JC ;

GEBALLE, TH .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1990, 171 (3-4) :354-382

[5] EFFECT OF OXYGEN-PRESSURE ON THE SYNTHESIS OF YBA2CU3O7-X THIN-FILMS BY POSTDEPOSITION ANNEALING [J].

FEENSTRA, R ;

LINDEMER, TB ;

BUDAI, JD ;

GALLOWAY, MD .

JOURNAL OF APPLIED PHYSICS, 1991, 69 (09) :6569-6585

[6] ASPECTS OF LOW-TEMPERATURE ANNEALING YBA2CU3O7-DELTA THIN-FILMS [J].

FILIPCZUK, SW ;

ANDRIKIDIS, C ;

DART, DL .

PHYSICA C, 1992, 194 (1-2) :9-19

[7] CORRELATION BETWEEN THE INSITU GROWTH-CONDITIONS OF YBCO THIN-FILMS AND THE THERMODYNAMIC STABILITY-CRITERIA [J].

HAMMOND, RH ;

BORMANN, R .

PHYSICA C, 1989, 162 :703-704

[8] PARTIAL OXYGEN-PRESSURE EFFECTS ON THE MORPHOLOGY OF Y-BA-CU-O THIN-FILMS IN LASER DEPOSITION PROCESS [J].

HASE, T ;

IZUMI, H ;

OHATA, K ;

SUZUKI, K ;

MORISHITA, T ;

TANAKA, S .

JOURNAL OF APPLIED PHYSICS, 1990, 68 (01) :374-376

[9] EPITAXIAL-GROWTH OF A-AXIS ORIENTED LASER DEPOSITED YBA2CU3O7-X THIN-FILMS [J].

HASE, T ;

TAKAHASHI, H ;

IZUMI, H ;

OHATA, K ;

SUZUKI, K ;

MORISHITA, T ;

TANAKA, S .

JOURNAL OF CRYSTAL GROWTH, 1991, 115 (1-4) :788-792

[10]

Hase T., 1992, IEEE Translation Journal on Magnetics in Japan, V7, P557, DOI 10.1109/TJMJ.1992.4565447