DIRECT OBSERVATION OF COULOMB INTERACTIONS IN HIGHLY CONDUCTING [2,5-DIMETHYL-DICYANOQUINONEDIIMINE]2AG

Authors
SCHMEISSER D GOPEL W FUCHS H GRAF K ERK P
Citation
D. Schmeisser et al., DIRECT OBSERVATION OF COULOMB INTERACTIONS IN HIGHLY CONDUCTING [2,5-DIMETHYL-DICYANOQUINONEDIIMINE]2AG, Physical review. B, Condensed matter, 48(7), 1993, pp. 4891-4894
Citations number
37
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
48
Issue
7
Year of publication
1993
Pages
4891 - 4894
Database
ISI
SICI code
0163-1829(1993)48:7<4891:DOOCII>2.0.ZU;2-1
Abstract
Valence-band photoelectron spectroscopy and scanning-tunneling microsc opy demonstrate the significance of Coulomb interactions for the semic onducting state of single crystalline [2,5-dimethyl-dicyanoquinonediim ine]2Ag. Direct evidence for the electron-electron interactions is ded uced from the spectroscopic observation of a pseudogap in the density of states near the Fermi energy and from the dimerization in real spac e observed by tunneling microscopy.