Dergiler / Turkish Journal of Physics / 2001 / Cilt: 25 - Sayı: 4
A Theoretical Model for the Non-linear Susceptibility of the Antiferromagnetic Systems
- Sayfa
- 309–314
- DOI
- —
Özet
In this study, we have developed a general theoretical model, based upon the simple mean field model of N\'{e}el, for the non-linear response of an antiferromagnetic system. The results indicate that the odd order derivatives, (d2n + 1ma)0 = (-d2n + 1mb)0, where n=1,2,3......, will diverge and the even order derivatives, (d2nma)0 = (d2nmb)0 will vanish due to the symmetry of two sublattices, ``a'' and ``b'', forming the antiferromagnet. This model also supports our experimental results performed on two antiferromagnetic samples, namely, Cs2MnCl4.2H2O and MnCl2.4H2O [1].
Abstract
In this study, we have developed a general theoretical model, based upon the simple mean field model of N\'{e}el, for the non-linear response of an antiferromagnetic system. The results indicate that the odd order derivatives, (d2n + 1ma)0 = (-d2n + 1mb)0, where n=1,2,3......, will diverge and the even order derivatives, (d2nma)0 = (d2nmb)0 will vanish due to the symmetry of two sublattices, ``a'' and ``b'', forming the antiferromagnet. This model also supports our experimental results performed on two antiferromagnetic samples, namely, Cs2MnCl4.2H2O and MnCl2.4H2O [1].