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Ferromagnets: Intercalation‐Driven Reversible Control of Magnetism in Bulk Ferromagnets (Adv. Mater. 27/2014)
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.201470186
Subject(s) - magnetism , intercalation (chemistry) , ferromagnetism , materials science , condensed matter physics , magnetization , lithium (medication) , chemical physics , nanotechnology , inorganic chemistry , magnetic field , chemistry , physics , medicine , endocrinology , quantum mechanics
A new concept of controlling magnetism in bulk ferromagnets via reversible lithium chemistry is illustrated. The approach bridges electrochemistry with magnetism and is pertinent to any volume of an intercalation‐friendly ferromagnetic material. An iron oxide (maghemite) nanoparticle ensemble, chosen as a representative system, shows a fully reversible and large variation of saturation magnetization upon a controlled intercalation/de‐intercalation process of Li + ions. A detailed description of the phenomenon can be found in the article by S. Dasgupta and co‐workers on page 4639.