RESONANT-TUNNELING IN 2 DIMENSIONS VIA AN IMPURITY

被引：11

作者：

GRANOT, E

AZBEL, MY

机构：

[1] School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel-Aviv University

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.50.8868

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We solve an exact model of two-dimensional resonant tunneling through a potential barrier with a point defect. The model shows that the scattering amplitude has a very narrow spreading angle, and gets its maximal value for a small incoming angle. Even when the incoming wave is a narrow beam of electrons, the transmission coefficient depends very strongly on the position of the impurity. This characteristic can be used to detect the position of an impurity (or defect) in a two-dimensional layer.

引用

收藏

页码：8868 / 8871

页数：4

相关论文

共 20 条

[1] ELEVATOR RESONANCE ACTIVATION [J].

AZBEL, MY .

EUROPHYSICS LETTERS, 1992, 18 (06) :537-542

[2] VARIABLE-RANGE-HOPPING MAGNETORESISTANCE [J].

AZBEL, MY .

PHYSICAL REVIEW B, 1991, 43 (08) :6717-6722

[3] VARIABLE-RANGE-HOPPING MAGNETORESISTANCE [J].

AZBEL, MY .

PHYSICAL REVIEW B, 1991, 43 (03) :2435-2438

[4] RESONANT TUNNELING IN SEMICONDUCTOR DOUBLE BARRIERS [J].

CHANG, LL ;

ESAKI, L ;

TSU, R .

APPLIED PHYSICS LETTERS, 1974, 24 (12) :593-595

[5] RESONANT TUNNELING VIA LOCALIZED IMPURITY STATES IN METAL-INSULATOR-METAL JUNCTIONS [J].

CHRISTENSEN, NDS ;

CHRISTENSEN, NE .

SOLID STATE COMMUNICATIONS, 1978, 27 (12) :1259-1261

[6]

COLLINS GP, 1993, PHYS TODAY, V46, P17, DOI 10.1063/1.2809087

[7] DIRECT CALCULATION OF TUNNELING CURRENT .3. EFFECT OF LOCALIZED IMPURITY STATES IN BARRIER [J].

COMBESCOT, R .

JOURNAL OF PHYSICS PART C SOLID STATE PHYSICS, 1971, 4 (16) :2611-+

[8] FIELD EMISSION THROUGH ATOMS ADSORBED ON A METAL SURFACE [J].

DUKE, CB ;

ALFERIEFF, ME .

JOURNAL OF CHEMICAL PHYSICS, 1967, 46 (03) :923-+

[9] RESONANT TUNNELING VIA LOCALIZED STATES IN THIN MOS STRUCTURES [J].

HARTSTEIN, A ;

KOCH, RH .

SURFACE SCIENCE, 1986, 170 (1-2) :391-396

[10] RESONANT TUNNELING THROUGH SI-SIO2 DOUBLE BARRIERS [J].

HIROSE, M ;

MORITA, M ;

OSAKA, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS, 1977, 16 :561-564