THE CHARGE-DENSITY-WAVE IN 1T-TAS2 INTERCALATED WITH ETHYLENEDIAMINE - A COMBINED TDPAC AND X-RAY STUDY

Authors
GANAL P BUTZ T EVAIN M BREC R
Citation
P. Ganal et al., THE CHARGE-DENSITY-WAVE IN 1T-TAS2 INTERCALATED WITH ETHYLENEDIAMINE - A COMBINED TDPAC AND X-RAY STUDY, Hyperfine interactions, 80(1-4), 1993, pp. 1143-1147
Citations number
8
Categorie Soggetti
Physics, Atomic, Molecular & Chemical","Physics, Nuclear","Physics, Condensed Matter
Journal title
Hyperfine interactions → ACNP
ISSN journal
03043843
Volume
80
Issue
1-4
Year of publication
1993
Pages
1143 - 1147
Database
ISI
SICI code
0304-3843(1993)80:1-4<1143:TCI1IW>2.0.ZU;2-T
Abstract
Using time differential perturbed angular correlation (TDPAC) we inves tigated the Ta-181 nuclear quadrupole interaction (NQI) in situ during intercalation of ethylenediamine (EDA) into IT-TaS2. A non-hexagonal square-root 7 x square-root 7 superstructure related to a charge densi ty wave is formed with the phasing onto the lattice being derived from the NQI data. Upon heating to 473 K the Ta metal coordination changes irreversibly from octahedral to trigonal prismatic.