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ID 18665
file
creator
Sasakawa, Tetsuya
Suemitsu, T.
Bando, Yoshio
Jung, M. H.
Fujita, Toshizo
Nakajima, Motoki
Iwasa, Kazuaki
Kohgi, Masafumi
Paul, Ch.
Berger, St.
Bauer, Ernst D.
abstract
Magnetic, transport, and x-ray diffraction measurements on single-crystal CeRhAs, the so-called Kondo insulator, have revealed successive transitions at T1=370, T2=235, and T3=165 K. Below T1, the unit cell is doubled along the b and c axes. Thereby, the resistivity jumps upwards and magnetic susceptibility in all the directions drops. Superlattice reflections at (0,1/3,1/3) and (1/3,0,0) appear at T,T2. The latter suddenly increases below T3 where a transport gap is enhanced. These observations indicate that the gap formation is intimately related to lattice modulations.
journal title
Physical Review B - Condensed Matter and Materials Physics
volume
Volume 66
issue
Issue 4
start page
041103-1
end page
041103-4
date of issued
2002-07-16
publisher
American Physical Society
issn
0163-1829
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2002 American Physical Society.
relation url
department
Graduate School of Advanced Sciences of Matter