Short‐range magnetic order in a spin glass with nearest‐neighbour random exchange bonds | Zendy

Medvedev M. V. | Zendy

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Short‐range magnetic order in a spin glass with nearest‐neighbour random exchange bonds

Author(s) -

Medvedev M. V.

Publication year - 1979

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.2220910240

Subject(s) - antiferromagnetism , paramagnetism , spin glass , condensed matter physics , ferromagnetism , spin (aerodynamics) , curie temperature , nearest neighbour , exchange interaction , range (aeronautics) , chemistry , physics , materials science , thermodynamics , artificial intelligence , computer science , composite material

In the molecular field approximation it is shown that in a spin glass with nearest‐neighbour random exchange bonds of different signs ( I A > 0 and I B < 0) the ferromagnetic short‐range order will appear below the transition temperature from the paramagnetic state, if the concentration c of antiferromagnetic bonds I B is less than a concentration c ★ , and the antiferromagnetic short‐range one will appear, if c is more than c ★ . The Edwards‐Anderson spin‐glass state, in which the short‐range magnetic order is completely absent, is realized only at the concentration c ★ that corresponds to zero paramagnetic Curie point.

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