The dilute quantum Heisenberg antiferromagnet | Zendy

C. C. Wan | Zendy; A. B. Harris | Zendy; Joan Adler | Zendy

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The dilute quantum Heisenberg antiferromagnet

Author(s) -

C. C. Wan,

A. B. Harris,

Joan Adler

Publication year - 1991

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.348123

Subject(s) - antiferromagnetism , condensed matter physics , exponent , heisenberg model , crossover , percolation (cognitive psychology) , zero temperature , physics , series (stratigraphy) , spin (aerodynamics) , critical exponent , zero (linguistics) , thermodynamics , phase transition , paleontology , philosophy , linguistics , artificial intelligence , neuroscience , computer science , biology

Series expansions are used to treat the randomly diluted spin‐1/2 Heisenberg antiferromagnet at zero temperature. A series is obtained at zero temperature in powers of the concentration for many correlation functions and for the correlation length from which static, dynamic, and crossover exponents are estimated. The correlation length exponent is found to be 0.77±0.10 in two dimensions. The critical concentration for the appearance of long‐range order is indistinguishable from the percolation threshold.

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