Structural phase coexistence and magnetocaloric effect in fast-neutron-irradiated Ce(Fe0.96Ru0.04)2 intermetallic compound

We have presented direct evidence of crystallographic structural phase coexistence in a fast‐neutron‐irradiated Ce(Fe0.96Ru0.04)2 intermetallic compound. The ferromagnetic (FM) cubic phase slowly transforms into antiferromagnetic (AFM) rhombohedral phase at low temperature. Though the FM to AFM tran...

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Bibliographic Details
Published in:physica status solidi (b) 2014-01, Vol.251 (1), p.219-223
Main Authors: Dube, V., Mishra, P. K., Sastry, P. U., Prajapat, C. L., Rajarajan, A. K., Thakare, S. V., Singh, M. R., Ravikumar, G.
Format: Article
Language:English
Subjects:
CeFe2
magnetic entropy
magnetocaloric effect
phase transitions
structural phases
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Summary:We have presented direct evidence of crystallographic structural phase coexistence in a fast‐neutron‐irradiated Ce(Fe0.96Ru0.04)2 intermetallic compound. The ferromagnetic (FM) cubic phase slowly transforms into antiferromagnetic (AFM) rhombohedral phase at low temperature. Though the FM to AFM transition is first order in nature, the coexistence continues well below the transition temperature. Using Maxwell's relation we have deduced the magnetic entropy change, ΔSM. Remnant FM domains nucleated around the quenched defects, created by fast‐neutron irradiation, is principally responsible for a diminution of ΔSM.
ISSN:0370-1972
1521-3951
DOI:10.1002/pssb.201349206