BI-SR-CA-CU-O THIN-FILM ENERGY-GAP AS A FUNCTION OF TEMPERATURE AND FORCE APPLIED TO SQUEEZABLE-ELECTRON-TUNNELING JUNCTIONS

被引：13

作者：

WALSH, T ^{[1
]}

MORELAND, J ^{[1
]}

ONO, RH ^{[1
]}

KALKUR, TS ^{[1
]}

机构：

[1] UNIV COLORADO,COLORADO SPRINGS,CO 80933

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.43.11492

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tunneling-spectroscopy measurements have been performed on Bi-Sr-Ca-Cu-O squeezable-electron-tunneling (SET) junctions. Two distinct features have been seen in the current-voltage [I(V)] and conductance-voltage [G(V)] characteristics. One of these features has the appearance of an energy-gap signature, while the other may be due to switching to the voltage state of a grain-boundary junction that is in series with the SET junction. The latter feature can mimic the energy-gap signature in I(V) and G(V) characteristics. These two features respond very differently to changes in temperature and the force applied to the SET junctions.

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页码：11492 / 11495

页数：4

相关论文

共 14 条

[1] TUNNELING SPECTROSCOPY ON HIGH-TC SUPERCONDUCTORS - CERTAINTIES CLUES AND AMBIGUITIES [J].

BARONE, A .

PHYSICA C, 1988, 153 (02) :1712-1717

[2] REPRODUCIBLE TUNNELING DATA ON CHEMICALLY ETCHED SINGLE-CRYSTALS OF YBA2CU3O7 [J].

GURVITCH, M ;

VALLES, JM ;

CUCOLO, AM ;

DYNES, RC ;

GARNO, JP ;

SCHNEEMEYER, LF ;

WASZCZAK, JV .

PHYSICAL REVIEW LETTERS, 1989, 63 (09) :1008-1011

[3] NEW APPROACH TO HIGH-RESOLUTION MEASUREMENTS OF STRUCTURE IN SUPERCONDUCTING TUNNELING CURRENTS [J].

HEBARD, AF ;

SHUMATE, PW .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1974, 45 (04) :529-533

[4] TUNNELING SPECTROSCOPY OF Y-BA-CU-O COMPOUND [J].

IGUCHI, I ;

WATANABE, H ;

KASAI, Y ;

MOCHIKU, T ;

SUGISHITA, A ;

YAMAKA, E .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1987, 26 (05) :L645-L646

[5]

IIDA K, 1988, MATER RES SOC S P, V99, P765

[6] TUNNELING SPECTROSCOPY OF THE 80-K SUPERCONDUCTING PHASE OF THE BI-SR-CA-CU-O SYSTEM [J].

IKUTA, H ;

MAEDA, A ;

UCHINOKURA, K ;

TANAKA, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (06) :L1038-L1040

[7]

Kirtley J. R., 1990, International Journal of Modern Physics B, V4, P201, DOI 10.1142/S0217979290000127

[8] OBSERVATIONS OF QUASI-PARTICLE TUNNELING AND JOSEPHSON BEHAVIOR IN Y1BA2CU3O7-X/NATIVE BARRIER/PB THIN-FILM JUNCTIONS [J].

KWO, J ;

FULTON, TA ;

HONG, M ;

GAMMEL, PL .

APPLIED PHYSICS LETTERS, 1990, 56 (08) :788-790

[9] ELECTROMAGNETIC SQUEEZER FOR COMPRESSING SQUEEZABLE ELECTRON-TUNNELING JUNCTIONS [J].

MORELAND, J ;

HANSMA, PK .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1984, 55 (03) :399-403

[10]

PHILLIPS JC, 1989, PHYSICS HIGH TC SUPE, P244