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Electron tunneling spectroscopy on poly- and single crystalline Rb3C60

✍ Scribed by P. Jess; S. Behler; M. Bernasconi; V. Thommen-Geiser; H.P. Lang; M. Baenitz; K. Lüders; H.-J. Güntherodt

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
225 KB
Volume
235-240
Category
Article
ISSN
0921-4534

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✦ Synopsis

The energy gap A of the superconducting compound RbsCe0 is determined by electron tunneling spectroscopy in high vacuum using a low temperature scanning tunneling microscope. A single crystalline sample shows a significantly larger gap value(A = 7.1 meV) than a polycrystalline sample (A ~ 2-4 meV). This behavior is attributed to larger local variation of stoichiometry in the polycrystalline sample.

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