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Intercalation‐Driven Reversible Control of Magnetism in Bulk Ferromagnets
Author(s) -
Dasgupta Subho,
Das Bijoy,
Knapp Michael,
Brand Richard. A.,
Ehrenberg Helmut,
Kruk Robert,
Hahn Horst
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201305932
Subject(s) - magnetism , materials science , intercalation (chemistry) , ferromagnetism , condensed matter physics , inorganic chemistry , physics , chemistry
An extension in magnetoelectric effects is proposed to include reversible chemistry‐controlled magnetization variations. This ion‐intercalation‐driven magnetic control can be fully reversible and pertinent to bulk material volumes. The concept is demonstrated for ferromagnetic iron oxide where the intercalated lithium ions cause valence change and partial redistribution of Fe 3+ cations yielding a large and fully reversible change in magnetization at room temperature.