bbin真人

bbin真人物科院李晓教授在《PNAS》发表研究论文

jinri,wulikexueyujishuxueyuanlixiaojiaoshouzaidianliudaozhidezixuanjihualingyuqudezhongyaojinzhan。xiangguanjieguoyi“out-of-plane carrier spin in transition-metal dichalcogenides under electric current”weitifabiaozaimeiguokexueyuanyuankan(pnas)。lixiaojiaoshouweigailunwendediyizuozhe,tayumeiguokeluoladuozhoulidaxuechenhuajiaoshouweilunwendegongtongtongxunzuozhe。meiguodekesasidaxueaositingfenxiaoniuqianjiaoshouweilunwendegongtongzuozhe。nanjingshifandaxueweidiyitongxunzuozhedanwei。

zaidangjinxinxishehui,cixingdianziyuanqijiancunzaiyugezhongzhinengshebeizhizhong。xinxidegaosuchuandiyilaiyuzheixiecixingqijianduixinxikuaisukekaodejiluheduqu。yinci,youxiaodekongzhicailiaodecixingyouliyutuidongxinxishehuidefazhan。xiangbiyucichangkongzhicixing,dianxuefangfayouzhegenghaodenengxiaoxinghekekongxing。qizhong,(cisp)hexiangguanliandezixuanguidaozhuanjushiliyongdianxueshouduandiaokongcixuexingzhideyouxiaotujing。cispjiezhujiaoqiangdezixuan-guidaoxianghuzuoyongjiangfeijihuadedianheliuzhuanhuaweizixuanjihualiu,keyongyushixiancijudefanzhuanhecichoudeyundong,jinershejixinxingdecixinggongnengqijian。dangqian,cispdeyanjiujiaoduodiguanzhuyurashbaxingzixuanguidaoouheheyizhijiemian。youcichanshengdefeimimianchuzailiuzigongxiandecisppingxingyujiemian,wangwangzhinengdaozhicijudemianneifanzhuan。xiangjiaoyuzhixiangmianneidecisp,zhixiangmianwaidecispdecailiaoshixianhaixiangduijiaoshao。cixingdeduofangweidiaokonghedianzixingzhidekekongyanhuaxuyaotansuoxinxingdemianwaicisphexiangyingdeyuanxingcailiao。

在该项研究工作中,研究团队提出具有铁磁序的二维过渡金属硫族化合物能实现垂直于二维平面的CISP。二维过渡金属硫族化合物是一类备受关注的谷电子材料,有着能谷自由度,其能谷结构依赖于磁化方向呈现出不同的简并状态。研究团队借助对称性分析、第一性原理相关的计算和线性响应理论,以单层VSe2和VTe2bbin真人为例,发现在面内磁性存在时体系具有指向面外的CISP。这一面外CISP来自于材料本征自旋轨道耦合和面内磁序的共同作用所引起的电子结构的旋转对称性破坏。他们构建了有别于Rashba模型的低能有效模型,解释了相关的数值发现。他们提出的面外CISP有望实现磁性和能谷结构的电学调控,为构造新型的自旋和能谷器件提供了新策略。

gaiyanjiugongzuodedaoguojiazirankexuejijinqingnianxiangmu、jiangsushengtepinjiaoshoujihuadengkeyanxiangmuzizhu。lunwenlianjiewei。

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    bbin真人2020nian07yue10ri 14:21

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    wukeyuan

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南京市仙林大学城文苑路1号,
邮编 210023
.cn

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