Journal Article

FZJ-2018-03755

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Magneto-structural correlation in Co 0.8 Cu 0.2 Cr 2 O 4 cubic spinel

Kumar, R. ; Rayaprol, S. ; Siruguri, V. ; Xiao, Y. ; Ji, W.FZJ* ; Pal, D. (Corresponding author)

2018
North-Holland Publ. Co. Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.jmmm.2018.01.072

Abstract: 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.

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Contributing Institute(s):

1. Streumethoden (PGI-4)
2. JARA-FIT (JARA-FIT)
3. Streumethoden (JCNS-2)

Research Program(s):

1. 144 - Controlling Collective States (POF3-144) (POF3-144)
2. 524 - Controlling Collective States (POF3-524) (POF3-524)
3. 6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621) (POF3-621)
4. 6213 - Materials and Processes for Energy and Transport Technologies (POF3-621) (POF3-621)
5. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)

Appears in the scientific report 2018

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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