STATICS AND DYNAMICS OF SINGLE-ELECTRON SOLITONS IN 2-DIMENSIONAL ARRAYS OF ULTRASMALL TUNNEL-JUNCTIONS

被引：36

作者：

BAKHVALOV, NS ^{[1
]}

KAZACHA, GS ^{[1
]}

LIKHAREV, KK ^{[1
]}

SERDYUKOVA, SI ^{[1
]}

机构：

[1] JOINT INST NUCL RES,DUBNA 141980,USSR

来源：

PHYSICA B | 1991年 / 173卷 / 03期

关键词：

D O I：

10.1016/0921-4526(91)90098-Y

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have analyzed the distribution and transfer of electric charge in a uniform two-dimensional array of ultrasmall tunnel junctions. The effects can be most adequately described in terms of topological solitons with charge +/- e. Field distribution in the soliton, its intrinsic energy, and the energy of interaction between the solitons and array edges have been calculated and compared with those for the one-dimensional case studied earlier. Numerical simulations have shown that the solitons tend to form a two-dimensional Wigner crystal which can be driven along the array without melting, on certain conditions. Such a correlated transfer of charge induces narrow-band "SET" oscillations of frequency f(s) = I/e, where I is the average current carried by the solitons. Conditions of experimental observation of this effect have been analyzed and compared with those for the one-dimensional arrays.

引用

页码：319 / 328

页数：10

共 12 条

[1]

AVERIN DV, IN PRESS QUANTUM EFF

[2]

BAKHVALOV NS, 1989, IEEE T MAGN, V25, P1436

[3]

BAKHVALOV NS, 1989, ZH EKSP TEOR FIZ, V68, P581

[4] TIME-CORRELATED SINGLE-ELECTRON TUNNELING IN ONE-DIMENSIONAL ARRAYS OF ULTRASMALL TUNNEL-JUNCTIONS [J].