幸运赛车彩票手机版

以人为本 幸运赛车彩票手机版至上 科学管理 勤政高效

wulisuoyanfayuanweidianjingyiqijishu,zaiyuanzifenbianxiadiaokongtiedianwoxuanchouxiangzhuanbian

  

  tiedianwoxuanchoushijihualianxuxuanzhuanxingchengdetiediantuopujiegou,zaidianzixinxilingyujuyouqianzaideyingyongjiazhi。dangewoxuanchoudechicunweijigenami,youwangdadatigaoxinxicunchumidu。weilejianglaishijiqijianyingyong,ruhezaiwaichangjilixiacaozongzheileijiegoudetuopuzhuangtaishizhiguanzhongyaode。yinci,yanjiuwoxuanchouzaiwaichangzuoyongxiadedonglixueguochengjuyouzhongyaoyiyi。

  youyutiedianwoxuanchouchicunxiao,yiwangdechangguishiyanshouduannanyishixianduiqicaokongyuguancebiaozheng。zhongguokexingyunsaichecaipiaoshoujibanwuliyanjiusuo/beijingningjutaiwuliguojiayanjiuzhongxinbiaomianwuliguojiazhongdianshiyanshibaixuedongyanjiuyuanketizuzaiguoqujinershinianshijianli,yanfatoushedianjingzhongdesaomiaotanzhenjishu,yuanweishixianduixiaochiducailiaodecaozong、wuxingcelianghejiegoubiaozhenggongneng,zhijiejieshiwuxingyuyuanzijiegouguanxijiwaichangdiaokongguilv。tamenliyongyanfadeyiqijishu,qudeleyixilieyanjiujinzhan (nano lett. 3, 1147 (2003), apl 88, 133107 (2006), jacs 132, 4197 (2010), adv. mater. 26, 3649 (2014), angew. chem. int. ed. 54, 15222( 2015), sci. bull. 63, 1208 (2018),prl 124, 056002 (2020)deng)。jinjiniangaiketizujiangsaomiaotanzhenjishudewendingxinghejingdujinyibutigao,jieheqiuchajiaozhengdianjingdeyuanzifenbiannengli,shixianlewaichangdiaokongxiayuanzifenbiandewulihehuaxuedongtaiguochengdeguancebiaozheng。zuijin,tamenyubeijingdaxue、xiangtandaxuehemeiguobinzhouzhoulidaxueyanjiuzuhezuo,zaitiedianwoxuanchoulixuediaokongyanjiufangmianqudexinjinzhan,yanjiutuanduiliyongyuanweiqiuchajiaozhengdianjingshishiyuanzichengxiangjishuhexiangchangmonifangfa,jieshilewoxuanchouzaiwailizuoyongxiadexiangzhuanbianguilv。gaigongzuoyi“atomic imaging of mechanically induced topological transition of ferroelectric vortices”weitifabiaozainature communicationsshang。xingyunsaichecaipiaoshoujibanwulisuoboshishengchenpanweiwenzhanggongtongdiyizuozhe(paiming1/2)。

  这项工作研究了PbTiO3/SrTiO3幸运赛车彩票手机版超晶格中铁电涡旋畴的结构特征及其力学调控过程,通过扫描探针施加局部应力操纵涡旋畴,发现涡旋畴向面内a畴转变,并在应力消除后自发恢复。定量表征涡旋畴转变力仅为3 μN,小于一般铁电畴转变所需要的力,相场模拟结果与实验过程吻合。研究结果还表明,挠曲电效应不是涡旋畴转变的驱动力,而是使转变后a畴取向一致的原因。该研究提出了一种调控铁电涡旋畴的物理方法,是理解纳米尺度晶格-电荷相互作用的有意义的探索,对促进铁电拓扑结构的基础研究以及电子学器件应用具有积极作用。

  shangshugongzuodedaoxingyunsaichecaipiaoshoujiban、kejibu、guojiazirankexuejijinweidezizhu。

  

图1: PbTiO3/SrTiO3幸运赛车彩票手机版超晶格中涡旋畴的结构特征

tu2: woxuanchouzaiwailizuoyongxiadezhuanbianguocheng

幸运赛车彩票手机版tu3: woxuanchoulixuezhuanbianguochengzhongdejiegoubianhua

幸运赛车彩票手机版tu4: woxuanchoulixuezhuanbianhezifahuifuguocheng

幸运赛车_幸运赛车彩票手机版|官网 快乐赛车_快乐赛车彩票|首页 加拿大28_加拿大28彩票|信誉平台 秒速飞艇官网|信誉平台 秒速赛车_秒速赛车a网|官方平台 秒速快三_秒速快三官网|正规授权 加拿大pc28_加拿大pc28软件|官方平台 加拿大28_加拿大28软件|正规授权 北京快乐8_北京快乐8软件|官网 加拿大pc28_加拿大pc28平台|官网 极速赛车_极速赛车平台|正规授权