TY  - JOUR
AU  - Jonane, Inga
AU  - Cintins, Arturs
AU  - Kalinko, Aleksandr
AU  - Chernikov, Roman
AU  - Kuzmin, Alexei
TI  - X-ray absorption near edge spectroscopy of thermochromic phase transition in CuMoO<sub>4</sub>
JO  - Low temperature physics
VL  - 44
SN  - 1063-777X
CY  - College Park, Md.
PB  - AIP Publ.
M1  - PUBDB-2018-01590
SP  - 434 - 437
PY  - 2018
N1  - Published by AIP Publishing
AB  - Thermochromic phase transition was studied in CuMoO4 using the Cu and Mo K-edge x-ray absorption spec-troscopy in the temperature range of 10–300 K. The hysteretic behavior has been evidenced from the tempera-ture dependence of the pre-edge shoulder intensity at the Mo K-edge, indicating that the transition from brownish-red γ-CuMoO<sub>4</sub> to green α-CuMoO<sub>4</sub> occurs in the temperature range of 230–280 K upon heating, whereas the α-to-γ transition occurs between 200 and 120 K upon cooling. Such behavior of the pre-edge shoulder at the Mo K-edge correlates with the change of molybdenum coordination between distorted tetrahedral in α-CuMoO4 and distorted octahedral in γ-CuMoO<sub>4</sub>. This result has been supported by ab initio full-multiple-scattering x-ray absorption near edge structure (XANES) calculations.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000433951600008
DO  - DOI:10.1063/1.5034155
UR  - https://bib-pubdb1.desy.de/record/401870
ER  -