Spin Configurations in the Rectangular Lattice

• 作者: Gulistan Mert Hasan Sevki Mert
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 物理学
• 关键词: SPIN CONFIGURATION EXCHANGE Interaction MAGNETIC Mode MAGNETIC Structure
• 年，卷（期）: ngtwlgjqkyw_2013,（4）
• 页码范围: 184-188
• 页数: 5页
• 分类号: O48

摘要

Using matrix method, the possible spin configurations have been determined for four sublattices in rectangular lattice taking into account only nearest-neighbor exchange interactions. We obtain collinear and non-collinear spin configurations in the ground and the first excited states for the three different propagation vectors. When k = 0, depending on the sign of exchange parameters, we find a ferromagnetic mode and three antiferromagnetic modes. When k = [1, 1] and [1.5, 1.5], we find non-collinear (canted) spin configurations. Moreover, we observe that spins of some sublattices in the excited state change their orientations.