典型文献
Giant Influence of Clustering and Anti-Clustering of Disordered Surface Roughness on Electronic Tunneling
文献摘要：
This work reveals the giant influence of spatial distribution of disordered surface roughness on electron tun-neling,which is of immediate relevance to the magneto tunnel device and imaging technologies.We calculate the spin-dependent tunneling in Fe/vacuum/Fe junction with disordered surface roughness with the first-principles non-equilibrium dynamical cluster theory.It is found that,at high concentration of surface roughness,different spatial distributions,including the clustered,anti-clustered and completely random roughness characterized by Warren-Cowley parameters,present large deviations from each other in all spin channels.By changing from clustered to anti-clustered roughness,it is surprising that spin polarization of tunneling in parallel configuration(PC)can be drastically reversed from-0.52 to 0.93,while complete randomness almost eliminates the polar-ization.It is found that the anti-clustered roughness can dramatically quench the tunneling of minority spin in both PC and anti-PC by orders of magnitude,but significantly enhance the transmission of majority spin in PC(by as large as 40％)compared to the results of clustered roughness,presenting distinct influences of differently correlated surface roughness.The spatial correlation of disordered surface roughness can significantly modify the surface resonance of Fe minority spin.
文献关键词：
中图分类号：
作者姓名：
Yu Zhang;Qingyun Zhang;Youqi Ke;Ke Xia
作者机构：
School of Physical Science and Technology,ShanghaiTech University,Shanghai 201210,China;Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;University of Chinese Academy of Sciences,Beijing 100049,China;Beijing Computational Science Research Center,Beijing 100193,China
文献出处：
引用格式：
[1]Yu Zhang;Qingyun Zhang;Youqi Ke;Ke Xia-.Giant Influence of Clustering and Anti-Clustering of Disordered Surface Roughness on Electronic Tunneling)[J].中国物理快报（英文版）,2022(08):79-84
A类：
neling,Cowley
B类：
Giant,Influence,Clustering,Anti,Disordered,Surface,Roughness,Electronic,Tunneling,This,work,reveals,giant,spatial,disordered,surface,roughness,electron,which,immediate,relevance,magneto,device,imaging,technologies,We,calculate,spin,dependent,tunneling,vacuum,junction,first,principles,equilibrium,dynamical,theory,It,found,that,high,concentration,distributions,including,clustered,anti,completely,characterized,by,Warren,parameters,large,deviations,from,each,other,channels,By,changing,surprising,polarization,parallel,configuration,be,drastically,reversed,while,randomness,almost,eliminates,dramatically,quench,minority,both,orders,magnitude,significantly,enhance,transmission,majority,compared,results,presenting,distinct,influences,differently,correlated,correlation,modify,resonance
AB值：
0.506206
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
