Spatially resolved electron tunneling spectroscopy on single crystalline Rb3C60

被引：10

作者：

Jess, P

Hubler, U

Behler, S

ThommenGeiser, V

Lang, HP

机构：

[1] Institute of Physics, University of Basel, CH-4056 Basel

来源：

SYNTHETIC METALS | 1996年 / 77卷 / 1-3期

关键词：

fullerene; spectroscopy; crystals; rubidium;

D O I：

10.1016/0379-6779(96)80087-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rb3C60 single crystals (T-c = 30.5 K) are investigated in the superconducting state by scanning tunneling microscopy (STM) at 2.8 K. Electron tunneling spectroscopy (ETS) reveals a spatial variation of the superconducting energy gap Delta. This behaviour is attributed to varying stoichiometry on a scale of 50 nm. An investigation of a C-60 facet shows that I(V) characteristics acquired between fullerene molecules exhibit additional gap states in contrast to those measured above molecules.

引用

页码：201 / 203

页数：3

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