Spin-orbital physics in transition-metal oxides

吴骅 教授
复旦大学物理系

报告时间：11月27日（周四）下午3：00点
报告地点：唐楼A213

摘要：Transition-metal oxides usually have charge-spin-orbital degrees of freedom and display rich properties. In this talk, using a simple spin-orbital level diagram and density functional calculations, we will discuss a spin-orbital state driven metal-insulator transition and magnetic transition in layered cobaltates and nickelates [1]. We will also study the role of spin-orbit coupling in affecting/determining various magnetic structures of 5d transition-metal based oxides [2-4].

[1] H. Wu, PRB 86, 075120 (2012); New J. Phys. 15, 023038 (2013).
[2] X. Ou & H. Wu, PRB 89, 035138 (2014); Sci. Rep. 4, 4609 (2014).
[3] H. Wang et al, PRB 90, 054406 (2014).
[4] X. Ou et al, Sci. Rep., in press (2014).