中国科学院苏州纳米技术与纳米仿生研究所-测试分析平台
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学术报告:Generate and Transport Spin Current in Low-dimensional Quantum Materials

【发稿时间】:2017/5/11

报告人: 黄兵教授 北京计算科学研究中心青年千人
 
报告题目: Generate and Transport Spin Current in Low-dimensional Quantum Materials
 
报告时间:2017年5月11日(周四),下午2:30
 
主持人:石林
 
报告地点:测试楼E321会议室
 
报告摘要: In the first part, we have developed a universal principle to generate and control a non-zero spin current in a quantum spin hall system by bending strain engineering. Here we show that bending strain can be used to control the spin orientation of counter-propagating edge states of a quantum spin system to generate a non-zero spin current. This physics mechanism can be applied to effectively tune the spin current and pure spin current decoupled from charge current in a quantum spin hall system by control of its bending curvature. In the second part, we demonstrate a novel mechanism for designing homogenous and long-range magnetism in the sp-electron molecular crystals instead of conventional atomic crystals. Molecular orbitals having different orbital energies and sequences are designed to have artificial frontier orbitals with large angular momenta (e.g. d and f) in a given crystal field to exhibit exotic quantum features, including magnetism. 

 
中国科学院苏州纳米技术与纳米仿生研究所(筹) 中国科学院 中华人民共和国科学技术部 中国科学院半导体研究所 中国科学院青年联合会 苏州独墅湖高等教育区
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