BULK AND SURFACE-STRUCTURE OF EPITAXIAL YBA2CU3O7-DELTA THIN-FILMS GROWN ON MG2TIO4 (001) SUBSTRATE LAYERS .2. ORIENTATION AND SURFACE-STRUCTURE

被引：6

作者：

SUM, R ^{[1
]}

LANG, HP ^{[1
]}

HAEFKE, H ^{[1
]}

BERTHOLD, L ^{[1
]}

HESSE, D ^{[1
]}

GUNTHERODT, HJ ^{[1
]}

机构：

[1] MAX PLANCK INST MICROSTRUCT PHYS,O-4050 HALLE,GERMANY

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1993年 / 195卷 / 1-2期

关键词：

D O I：

10.1016/0925-8388(93)90699-N

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Thin films of YBa2Cu3O7-delta (YBCO) have been grown on Mg2TiO4 substrate layers by pulsed laser deposition. The substrate temperature T(s) has been varied between 600 and 800-degrees-C in order to optimize the YBCO film growth. All samples were characterized by means of X-ray diffraction, scanning electron microscopy (SEM) and scanning tunneling microscopy (STM). We have found an optimum T(s) in the range of 675-700-degrees-C where the YBCO thin films show perfect (001) orientation. SEM and STM reveal that the (001) oriented YBCO films have very flat surfaces. STM shows a large number of spiral growth hills and steps of unit cell height. These films exhibit a superconducting transition temperature T(c)(onset) at 88.5 K and a zero resistance at 86.5 K. Films grown at lower substrate temperatures show no (001) orientation, but (100) and (110)/(103) orientations. At higher T(s) additional (100) oriented grains occur.

引用

页码：113 / 116

页数：4

共 50 条

[21] PHOTOEMISSION-STUDY OF EVAPORATED CUINS(2) THIN-FILMS .2. ELECTRONIC SURFACE-STRUCTURE
SCHEER, R
LEWERENZ, HJ
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1994, 12 (01): : 56 - 60
[22] RF ABSORPTION IN YBA2CU3O7-DELTA THIN-FILMS
VELICHKO, AV
IZHIK, EV
KIRICHENKO, AY
USOSKIN, AI
CHERPAK, NT
CHUKANOVA, IN
FIZIKA NIZKIKH TEMPERATUR, 1991, 17 (06): : 786 - 789
[23] MAGNETIC-FLUX PINNING IN EPITAXIAL YBA2CU3O7-DELTA THIN-FILMS
ROSHKO, A
GOODRICH, LF
RUDMAN, DA
MOERMAN, R
VALE, LR
JOURNAL OF ELECTRONIC MATERIALS, 1995, 24 (12) : 1919 - 1922
[24] MICROWAVE PERFORMANCE-PROPERTY RELATIONSHIPS OF YBA2CU3O7-DELTA THIN-FILMS GROWN ON LAALO3 (001) SUBSTRATE
YOUNG, KH
SUN, JZ
EDDY, MM
INAM, A
JOURNAL OF ELECTRONIC MATERIALS, 1992, 21 (05) : 475 - 482
[25] SURFACE TEXTURING OF BULK YBA2CU3O7-DELTA SAMPLES
MATTHEWS, DN
PUZZER, T
BAILEY, A
MONDINOS, N
ALVAREZ, G
RUSSELL, GJ
TAYLOR, KNR
JOURNAL OF CRYSTAL GROWTH, 1988, 91 (03) : 410 - 413
[26] EFFECT OF COLUMNAR DEFECTS ON THE CRITICAL CURRENT ANISOTROPY OF EPITAXIAL YBA2CU3O7-DELTA THIN-FILMS AND YBA2CU3O7-DELTA PRBA2CU3O7-DELTA MULTILAYERS
HOLZAPFEL, B
KREISELMEYER, G
KRAUS, M
BOUFFARD, S
KLAUMUNZER, S
SCHULTZ, L
SAEMANNISCHENKO, G
JOURNAL OF ALLOYS AND COMPOUNDS, 1993, 195 (1-2) : 411 - 414
[27] Surface relaxation and surface dynamics of YBa2Cu3O7-delta(001) slabs
Philippe, L
Lambin, P
JOURNAL OF PHYSICS-CONDENSED MATTER, 1996, 8 (49) : 10195 - 10207
[28] THE COPLANAR RESONATOR TECHNIQUE FOR DETERMINING THE SURFACE IMPEDANCE OF YBA2CU3O7-DELTA THIN-FILMS
PORCH, A
LANCASTER, MJ
HUMPHREYS, RG
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1995, 43 (02) : 306 - 314
[29] C-AXIS-ORIENTATION-DEPENDENT VORTEX IMAGES IN EPITAXIAL THIN-FILMS OF YBA2CU3O7-DELTA
GRIGORIEVA, IV
STEEDS, JW
POPPE, U
SCHULZ, H
DIVIN, YY
SEO, JW
URBAN, K
PHYSICAL REVIEW B, 1994, 50 (09): : 6366 - 6369
[30] NUCLEATION AND GROWTH OF YBA2CU3O7-DELTA FILMS GROWN BY PLD ON (001)MGO SUBSTRATE
KELLER, D
GERVAIS, A
CHAMBONNET, D
BELOUET, C
AUDRY, C
JOURNAL DE PHYSIQUE III, 1995, 5 (02): : 135 - 143

← 1 2 3 4 5 →