TY  - JOUR
AU  - Kumar, Ram
AU  - Rayaprol, S.
AU  - Siruguri, V.
AU  - Xiao, Y.
AU  - Ji, W.
AU  - Pal, D.
TI  - Magneto-structural correlation in Co 0.8 Cu 0.2 Cr 2 O 4 cubic spinel
JO  - Journal of magnetism and magnetic materials
VL  - 454
SN  - 0304-8853
CY  - Amsterdam
PB  - North-Holland Publ. Co.
M1  - FZJ-2018-03755
SP  - 342 - 348
PY  - 2018
AB  - Neutron and X-ray diffraction, magnetic susceptibility, and specific heat measurements have been used to investigate the magneto-structural phase transitions in 20% Cu substituted multiferroic CoCr2O4 spinel. The Jahn-Teller active Cu2+ ion in the tetrahedral A-site of the spinel configuration induces the Jahn-Teller distortion slightly above the Néel temperature. In this compound, we observe a Jahn-Teller distortion of the crystal structure at 90 K. It was further observed that the high temperature cubic structure coexists with the low temperature orthorhombic (Fddd) structure till the lowest temperature of measurement.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000426421800049
DO  - DOI:10.1016/j.jmmm.2018.01.072
UR  - https://juser.fz-juelich.de/record/849576
ER  -