SPATIALLY-RESOLVED ELECTRON-TUNNELING SPECTROSCOPY ON SINGLE-CRYSTALLINE RB3C60

Authors
JESS P HUBLER U BEHLER S THOMMENGEISER V LANG HP
Citation
P. Jess et al., SPATIALLY-RESOLVED ELECTRON-TUNNELING SPECTROSCOPY ON SINGLE-CRYSTALLINE RB3C60, Synthetic metals, 77(1-3), 1996, pp. 201-203
Citations number
10
Categorie Soggetti
Physics, Condensed Matter","Material Science","Polymer Sciences
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
77
Issue
1-3
Year of publication
1996
Pages
201 - 203
Database
ISI
SICI code
0379-6779(1996)77:1-3<201:SESOS>2.0.ZU;2-S
Abstract
Rb3C60 single crystals (T-c = 30.5 K) are investigated in the supercon ducting state by scanning tunneling microscopy (STM) at 2.8 K. Electro n tunneling spectroscopy (ETS) reveals a spatial variation of the supe rconducting energy gap Delta. This behaviour is attributed to varying stoichiometry on a scale of 50 nm. An investigation of a C-60 facet sh ows that I(V) characteristics acquired between fullerene molecules exh ibit additional gap states in contrast to those measured above molecul es.