BALLISTIC ELECTRON OPTICS

被引：20

作者：

SPECTOR, J ^{[1
]}

WEINER, JS ^{[1
]}

STORMER, HL ^{[1
]}

BALDWIN, KW ^{[1
]}

PFEIFFER, LN ^{[1
]}

WEST, KW ^{[1
]}

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

SURFACE SCIENCE | 1992年 / 263卷 / 1-3期

关键词：

D O I：

10.1016/0039-6028(92)90344-6

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：

We demonstrate a method to directly measure the ballistic mean free path lambda(b) of electrons in ultrahigh mobility GaAs/AlGaAs heterostructures. Lambda(0) and the elastic mean free path from mobility measurements lambda(mu) are measured and compared over the temperature range 0.3-10 K. We also demonstrate that ballistic electrons in these systems can be electrostatically refracted in structures greater-than-or-similar-to 10-mu-m in size, however, problems arise when the refractive structures are reduced to length scales on the order of a few micrometers.

引用

页码：240 / 246

页数：7

共 12 条

[1]

PFEIFFER LN, 1989, APPL PHYS LETT, V55, P1880

[2]

REED MA, NANOSTRUCTURES PHYSI

[3]

SHARVIN YV, 1965, ZH EKSP TEOR FIZ, V21, P655

[4] ELECTROSTATIC ELECTRON LENS IN THE BALLISTIC REGIME [J].