GE ON BI2SR2-XCA1+XCU2O8+Y - REDUCED REACTIVITY THROUGH CLUSTER ASSEMBLY

被引：6

作者：

OHNO, TR ^{[1
]}

YANG, YN ^{[1
]}

WEAVER, JH ^{[1
]}

KIMACHI, Y ^{[1
]}

HIDAKA, Y ^{[1
]}

机构：

[1] NIPPON TELEGRAPH & TEL PUBL CORP, IBARAKI ELECT COMMUN LABS, TOKAI, IBARAKI 31911, JAPAN

来源：

APPLIED PHYSICS LETTERS | 1990年 / 57卷 / 07期

关键词：

D O I：

10.1063/1.104287

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoemission studies of low-temperature deposition of ∼30-Å-diam Ge clusters on single-crystal Bi2 Sr2-x Ca1+x Cu2 O8+y (100) show that an interface is produced with no evidence of substrate disruption. Analysis of the superconductor core level emission as a function of coverage indicates uniform overlayer growth and complete surface coverage. These cluster-assembled interfaces were stable when warmed to 300 K, with only a slight reduction of Cu 2p3/2 satellite emission characteristic of the superconductor. In contrast, conventional atom-by-atom Ge deposition produces a Ge oxide layer and surface disruption.

引用

页码：718 / 720

页数：3

共 15 条

[1] CHEMICAL-SHIFTS IN PHOTOEXCITED AUGER-SPECTRA [J].

CASTLE, JE ;

EPLER, D .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1974, 339 (1616) :49-72

[2] SUPERCONDUCTOR-SUBSTRATE INTERACTIONS OF THE Y-BA-CU OXIDE [J].

CHEUNG, CT ;

RUCKENSTEIN, E .

JOURNAL OF MATERIALS RESEARCH, 1989, 4 (01) :1-15

[3]

DEBOER FR, 1988, COHESION METALS, P662

[4] ELECTRON-ESCAPE DEPTHS IN GERMANIUM [J].

GANT, H ;

MONCH, W .

SURFACE SCIENCE, 1981, 105 (01) :217-224

[5] INTERFACE FORMATION OF SEMICONDUCTORS WITH HIGH-TC SUPERCONDUCTORS - GE/LA1.85SR0.15CUO4 [J].

GAO, Y ;

WAGENER, TJ ;

WEAVER, JH ;

CAPONE, DW .

PHYSICAL REVIEW B, 1988, 37 (01) :515-518

[6] LARGE ANISOTROPY OF THE UPPER CRITICAL MAGNETIC-FIELD IN SINGLE-CRYSTAL BI-(SR,CA)-CU-O [J].

HIDAKA, Y ;

ODA, M ;

SUZUKI, M ;

MAEDA, Y ;

ENOMOTO, Y ;

MURAKAMI, T .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (04) :L538-L541

[7] CRYSTAL-GROWTH AND ANISOTROPIC PROPERTIES OF HIGH-TC OXIDE SUPERCONDUCTORS [J].

HIDAKA, Y ;

MURAKAMI, T .

PHASE TRANSITIONS, 1989, 15 (04) :241-261

[8]

HILL DM, IN PRESS SURF SCI

[9] SINGLE-CRYSTAL YBA2CU3O7-X AND BI2CA1+XSR2-XCU2O8+Y SURFACES AND AG ADATOM-INDUCED MODIFICATION [J].

MEYER, HM ;

HILL, DM ;

WAGENER, TJ ;

WEAVER, JH ;

GALLO, CF ;

GORETTA, KC .

JOURNAL OF APPLIED PHYSICS, 1989, 65 (08) :3130-3135

[10]

MEYER HM, 1990, PHYSICAL PROPERTIES, V2, P369

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