RESONANT TRANSPORT EFFECTS DUE TO AN IMPURITY IN A NARROW CONSTRICTION

被引：69

作者：

MCEUEN, PL ^{[1
]}

ALPHENAAR, BW ^{[1
]}

WHEELER, RG ^{[1
]}

SACKS, RN ^{[1
]}

机构：

[1] BRITISH FOOD MFG IND RES ASSOC,LEATHERHEAD KT22 7RY,SURREY,ENGLAND

来源：

SURFACE SCIENCE | 1990年 / 229卷 / 1-3期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

D O I：

10.1016/0039-6028(90)90896-G

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Measurements of the conductance versus width of a narrow constriction reveal an isolated peak located before the turn-on of the first transverse mode and a resonant lineshape superimposed on the conductance of the mode. These observations are attributed to resonant tunneling through a single impurity ion and, in analogy to the atomic case, resonant scattering from a neutral impurity due to the formation of a quasi-bound "composite state". The variation of the tunneling peak with temperature and magnetic field is analyzed to determine various properties of the impurity site. © 1990.

引用

页码：312 / 315

页数：4

共 7 条

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