z-logo
Premium
Field‐induced effects in the S = 1 two‐dimensional Heisenberg antiferromagnet
Author(s) -
Gouvêa M. E.,
Pires A. S. T.
Publication year - 2005
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.200540070
Subject(s) - condensed matter physics , antiferromagnetism , physics , heisenberg model , magnetic field , field dependence , symmetry (geometry) , field (mathematics) , spin (aerodynamics) , quantum mechanics , mathematics , geometry , pure mathematics , thermodynamics
We use the self‐consistent harmonic approximation to study the spin S = 1 Heisenberg antiferromagnet on a two‐dimensional lattice in a uniform applied magnetic field. The magnetic field destroys the (3) symmetry and an XY ‐like behavior, with a Berezinskii–Kosterlitz–Thouless (BKT) transition, is expected. We obtain the field dependence of the transition temperature for fields varying in a wide range. There has been experimental evidence that, for low dimensional spin systems, a gap can be induced by the applied magnetic field. We also investigate the behavior of this field‐induced gap. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here
Accelerating Research

Address

John Eccles House
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom