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Study of 4Hb‐TaS 2 and graphite intercalation compound by STM/STS
Author(s) -
Tanaka M.,
Mizutani W.,
Nakashizu T.,
Morita N.,
Yamazaki S.,
Bando H.,
Ono M.,
Kajimura K.
Publication year - 1988
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1988.tb01377.x
Subject(s) - intercalation (chemistry) , graphite intercalation compound , fermi level , graphite , condensed matter physics , scanning tunneling microscope , charge density wave , quantum tunnelling , charge density , octahedron , chemistry , electronic structure , materials science , crystallography , physics , crystal structure , inorganic chemistry , electron , superconductivity , quantum mechanics , organic chemistry
SUMMARY Investigations of charge‐density waves (CDW) in 4Hb‐TaS 2 and the shifted Fermi level in a CoCl 2 graphite intercalation compound (GIC) were performed by scanning tunnelling microscopy (STM) and scanning tunnelling spectroscopy (STS) A discrimination of the surface electronic structure of the octahedral structure and of the trigonal‐prismatic structure in 4Hb‐TaS 2 was made successfully in terms of the electronic properties. The measured value of the charge‐density‐wave gap in 4Hb‐TaS 2 at room temperature was about 85 meV. The shifted Fermi level in CoCl 2 ‐GIC was measured to be about 400 meV.