科研之友
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摘要
Structural and magnetic properties of Co-doped Sb2Te3 topological insulators have been investigated. Surface morphology was studied using scanning electron microscope (SEM) and atomic force microscope (AFM). X-ray photo electron spectroscopy (XPS) study reveals the mixed states of Co in Co2+ and Co3+. Magnetic study indicates that the substitution of Co in Sb2Te3 not only tune the materials from diamagnetic to antiferromagnetic (even at room temperature) but also propose a promising materials for antiferromagnetic TI which may be useful even for room temperature applications.
- 出版日期2018-2
