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Title: Evolution of the magnetic and structural properties of Fe 1 - x Co x V 2 O 4

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1];  [1];  [2];  [2];  [2];  [1];  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

The magnetic and structural properties of single-crystal Fe1-xCoxV2O4 samples have been investigated by performing specific heat, susceptibility, neutron diffraction, and x-ray diffraction measurements. As the orbital-active Fe2+ ions with larger ionic size are gradually substituted by the orbital-inactive Co2+ ions with smaller ionic size, the system approaches the itinerant electron limit with decreasing V-V distance. Then, various factors such as the Jahn-Teller distortion and the spin-orbital coupling of the Fe2+ ions on the A sites and the orbital ordering and electronic itinerancy of the V3+ ions on the B sites compete with each other to produce a complex magnetic and structural phase diagram. Finally, this phase diagram is compared to those of Fe1-xMnxV2O4 and Mn1-xCoxV2O4 to emphasize several distinct features.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1344988
Alternate ID(s):
OSTI ID: 1224641
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 13; ISSN 1098-0121
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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