1. 毕业设计(论文)的内容和要求
目前,拓扑绝缘体与磁性的结合是热点研究课题,理论表明在磁性拓扑绝缘体中可以实现众多奇异的拓扑量子现象,如无需施加外磁场,就可以实现具有一维无耗散边缘导电通道的量子反常霍尔效应。
虽然本征磁性的拓扑绝缘体材MnBi2Te4的磁性来源于材料自身结构内部的Mn原子,但在实验中,MnBi2Te4中的QAHE只有在较高磁场条件下才能被观察到。
本论文要求学生利用助熔剂法(flux method)生长拓扑绝缘体MnBi4Te7对其进行磁性的表征。
2. 参考文献
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