Electronic energy spectra in antiferromagnetic media with broken reciprocity
Electronic energy spectra in antiferromagnetic media with broken reciprocity
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DOI：
10.1103/physrevb.55.12566
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发表时间：
1997-05
影响因子：
3.7
通讯作者：
I. Vitebsky;J. Edelkind;E. N. Bogachek;A. G. Scherbakov;U. Landman
中科院分区：
文献类型：
--
作者：
I. Vitebsky;J. Edelkind;E. N. Bogachek;A. G. Scherbakov;U. Landman
反铁磁有序介质的电子能谱可能显示出非互易性;也就是说，波数为q和-q的布洛赫态对应的能量可能不同。本文采用一个简单的Kronig-Penney模型，其中包括一个交错的微观磁场和电场的适当对称性，估计系统中的非互易效应的大小，如反铁磁有序晶体以及周期性层状结构。
Electronic energy spectra \ensuremath{\varepsilon}(q) of antiferromagnetically ordered media may display nonreciprocity; that is, the energies corresponding to Bloch states with wave numbers q and -q may be different. In this paper a simple Kronig-Penney model, which includes a staggered microscopic magnetic and electric fields of the proper symmetry, is employed to estimate the magnitude of nonreciprocity effects in systems such as antiferromagnetically ordered crystals as well as periodical layered structures.