LOW-TEMPERATURE SCANNING-TUNNELING-MICROSCOPY AND SPECTROSCOPY OF SINGLE-CRYSTALS OF THE HIGH-TEMPERATURE SUPERCONDUCTOR BI2SR2CACU2O8, CLEAVED IN-SITU AND AT ROOM-TEMPERATURE

被引：7

作者：

HANCOTTE, H ^{[1
]}

DAVYDOV, DN ^{[1
]}

YE, M ^{[1
]}

DELTOUR, R ^{[1
]}

机构：

[1] FREE UNIV BRUSSELS,B-1050 BRUSSELS,BELGIUM

来源：

PHYSICA B | 1995年 / 204卷 / 1-4期

关键词：

D O I：

10.1016/0921-4526(94)00265-W

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A low-temperature scanning tunneling microscope is used for simultaneous topography and superconducting energy gap measurements of Bi2Sr2CaCu2O8+d (Bi2212) single crystals. The samples were cleaved either in situ at 4.2 K or at room temperature with the surface parallel to the a-b planes. The interpretation of the conductance data suggests a superconducting gap value along the c-direction 2 Delta/k(B)T(c) approximate to 9 for the room temperature cleaved crystals and 2 Delta/k(B)T(c) approximate to 6.7 for the low-temperature cleaved samples.

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页码：206 / 213

页数：8

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