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Monte Carlo simulation on magnetic properties in triangular Heisenberg system with single‐ion anisotropy
Author(s) -
Yao Xiaoyan
Publication year - 2011
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201084187
Subject(s) - anisotropy , condensed matter physics , monte carlo method , heisenberg model , spin (aerodynamics) , magnetization , magnetic anisotropy , magnetic field , physics , ferromagnetism , quantum mechanics , mathematics , statistics , thermodynamics
Abstract The magnetic properties dependent on temperature and external magnetic field in the spin frustrated triangular system are investigated by using Monte Carlo (MC) simulation on a Heisenberg spin model. The single‐ion anisotropy with different magnitudes is introduced to scrutinize the variation of magnetic behavior. It is revealed that the strong anisotropy is an essential key to induce the step‐like magnetization as a function of magnetic field, as observed in the triangular spin‐chain compound Ca 3 Co 2 O 6 at low temperature. Furthermore, the critical temperature, at which the stepwise magnetic behavior emerges is raised by increasing the anisotropy. This is attributed to the collinear spin structure strengthened by the anisotropy.