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Dielectric anomalies and spiral magnetic order in CoCr2O4

Abstract:

We have investigated the structural, magnetic, thermodynamic, and dielectric properties of polycrystalline CoCr2 O4, an insulating spinel exhibiting both ferrimagnetic and spiral magnetic structures. Below Tc =94 K the sample develops long-range ferrimagnetic order, and we attribute a sharp phase transition at TS 27 K to the onset of long-range spiral magnetic order. Neutron measurements confirm that the structure remains cubic at 80 K and at 11 K; the magnetic ordering by 11 K is seen to be ...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.74.024413

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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Inorganic Chemistry
Role:
Author
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Journal:
PHYSICAL REVIEW B
Volume:
74
Issue:
2
Publication date:
2006-07-05
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
URN:
uuid:3a31b5a0-f958-4bf9-a208-4480c89fbf9b
Source identifiers:
40001
Local pid:
pubs:40001
Language:
English

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