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Indirect Exchange Parameters of Two‐Sublattice Antiferromagnets
Author(s) -
Shimada Y.,
Hacker H.
Publication year - 1972
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/pssb.2220530211
Subject(s) - condensed matter physics , k nearest neighbors algorithm , rkky interaction , exchange interaction , field (mathematics) , physics , statistical physics , chemistry , antiferromagnetism , mathematics , ferromagnetism , computer science , pure mathematics , artificial intelligence
A technique is described for evaluating the indirect exchange parameter | J (0)| for two‐sublattice antiferromagnets. The method relates the RKKY model, incorporating the freeelectron approximation, to the nearest and next‐nearest neighbor interaction constants of the molecular field model. Application of the technique to DyIn 3 yielded values of | J (0)| equal to 0.17 and 0.03 eV for k F / k F 0equal to 0.98 and 0.86, respectively.