Temperature-dependent Fermi gap opening in the c(6 x 4)-C60/Ag(100) two-dimensional superstructure

被引：42

作者：

Cepek, C

Vobornik, I

Goldoni, A

Magnano, E

Selvaggi, G

Kröger, J

Panaccione, G

Rossi, G

Sancrotti, M

机构：

[1] INFM, Lab Nazl TASC, I-34012 Trieste, Italy

[2] Sincrotrone Trieste, I-34012 Trieste, Italy

[3] Univ Modena, Dipartimento Fis, I-41100 Modena, Italy

[4] INFM, I-41100 Modena, Italy

[5] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland

[6] Univ Cattolica Sacro Cuore, Dipartimento Matemat & Fis, I-25121 Brescia, Italy

[7] INFM, I-25121 Brescia, Italy

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.86.3100

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

High-resolution angle-integrated photoemission of one monolayer of C-60 chemisorbed on Ag(100) shows the reversible opening of a gap at the Fermi level at temperatures 25 less than or equal to T less than or equal to 300 K. The gap reaches a maximum value of approximate to 10 meV at T less than or equal to 70 K. This finding is the first evidence of an electronic phase transition in C-60 monolayers and has implications on the ongoing debate about surface superconductivity in C-60-based bulk materials.

引用

页码：3100 / 3103

页数：4

共 29 条

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[Anonymous], PHYS REV B

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