کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1800654 | 1024541 | 2010 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Influence of strong single-ion anisotropy on phase states of 3D and 2D frustrated magnets Influence of strong single-ion anisotropy on phase states of 3D and 2D frustrated magnets](/preview/png/1800654.png)
We investigated the influence of strong single-ion anisotropy, exceeding exchange interaction, and frustrated exchange interaction on spin-wave excitation spectra and phase states using the Hubbard operators’ technique, allowing the exact account of single-ion anisotropy. The results show that both the homogeneous phases (ferromagnetic and quadrupolar) and the spatially inhomogeneous phase (spiral structure) are possible in the 3D magnetic crystal. The region of existence of the spiral structure is considerably smaller than that in the analogues system, but with weak single-ion anisotropy. The situation is more complex in the 2D system; another spatially inhomogeneous state (the domain structure) can be realized in addition to the spiral magnetic structure. The phase diagrams for both the 3D and 2D systems were plotted.
Journal: Journal of Magnetism and Magnetic Materials - Volume 322, Issue 20, October 2010, Pages 3196–3203