Автор |
N K Patel |
Автор |
L Martin-Moreno |
Автор |
M Pepper |
Автор |
R Newbury |
Автор |
J E F Frost |
Автор |
D A Ritchie |
Автор |
G A C Jones |
Автор |
J T M B Janssen |
Автор |
J Singleton |
Автор |
J A A J Perenboom |
Дата выпуска |
1990-08-27 |
dc.description |
Experimental evidence is presented for the appearance of new plateaux in the differential conductance of a ballistic 1D channel in the high DC bias regime. In zero magnetic field, the authors observe steps in the differential conduction of e<sup>2</sup>/h, as opposed to the conventional value of 2e<sup>2</sup>/h for a spin-degenerate 1D subband. The new plateaux are found to be at quantised values to an accuracy of a few per cent and are described well by a model that assumes the bias is dropped symmetrically in the 1D channel. In addition, all the plateaux disappear with increasing DC voltage bias which can be explained in terms of an enhancement of the tunnelling probability. The same effects persist in a transverse magnetic field and the authors are able to calculate subband spacings as a function of the applied magnetic field. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Ballistic transport in one dimension: additional quantisation produced by an electric field |
Тип |
lett |
DOI |
10.1088/0953-8984/2/34/018 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
2 |
Первая страница |
7247 |
Последняя страница |
7254 |
Аффилиация |
N K Patel; Cavendish Lab., Cambridge Univ., UK |
Аффилиация |
L Martin-Moreno; Cavendish Lab., Cambridge Univ., UK |
Аффилиация |
M Pepper; Cavendish Lab., Cambridge Univ., UK |
Аффилиация |
R Newbury; Cavendish Lab., Cambridge Univ., UK |
Аффилиация |
J E F Frost; Cavendish Lab., Cambridge Univ., UK |
Аффилиация |
D A Ritchie; Cavendish Lab., Cambridge Univ., UK |
Аффилиация |
G A C Jones; Cavendish Lab., Cambridge Univ., UK |
Аффилиация |
J T M B Janssen; Cavendish Lab., Cambridge Univ., UK |
Аффилиация |
J Singleton; Cavendish Lab., Cambridge Univ., UK |
Аффилиация |
J A A J Perenboom; Cavendish Lab., Cambridge Univ., UK |
Выпуск |
34 |