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Bloch Wall Anomaly at the Canted–Ferromagnetic Order–Order Transition of Mixed Double‐Exchange/Superexchange Magnetic Systems
Author(s) -
Bärner K.,
Rao G.H.
Publication year - 2001
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200110)227:2<579::aid-pssb579>3.0.co;2-p
Subject(s) - superexchange , condensed matter physics , order (exchange) , ferromagnetism , physics , bloch wave , anomaly (physics) , finance , economics
In mixed coupled, but still magnetically polarized compounds, order–order transitions occur at which occasion the Bloch wall thickness δ can go to zero. This is demonstrated for a deGennes mixed double‐exchange/superexchange situation. Experimentally, such Bloch wall anomalies can be detected via Bloch wall enhanced NMR. We discuss one example, i.e. the intermetallic compound MnAs.