Structural-Distortion-Driven Cooperative Magnetic and Semiconductor-to-Insulator Transitions in Ferromagnetic FeSb2Se4

Chop and change: The FeSb2Se4 phase (see picture; Se red, Fe,Sb green and blue) features the coexistence of room‐temperature ferromagnetism and cooperative magnetic and semiconductor‐to‐insulator transitions at about 130 K. The transitions, which manifest themselves by a spontaneous loss of magnetiz...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2010-12, Vol.49 (51), p.9977-9981
Main Authors: Djieutedjeu, Honore, Poudeu, Pierre F. P., Takas, Nathan J., Makongo, Julien P. A., Rotaru, Aurelian, Ranmohotti, Kulugammana G. S., Anglin, Clarence J., Spinu, Leonard, Wiley, John B.
Format: Article
Language:English
Subjects:
chalcogenides
ferromagnetism
magnetic transitions
semiconductors
transition metals
Online Access:Get full text
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Summary:Chop and change: The FeSb2Se4 phase (see picture; Se red, Fe,Sb green and blue) features the coexistence of room‐temperature ferromagnetism and cooperative magnetic and semiconductor‐to‐insulator transitions at about 130 K. The transitions, which manifest themselves by a spontaneous loss of magnetization and a sudden increase in electrical resistivity, are driven by preferential lattice contraction within the ab plane upon cooling.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201005458