PHASE COHERENT AND INCOHERENT BACK SCATTERING OF ELECTRON WAVES IN CORRUGATION GATED QUANTUM WIRES

Authors
OCHIAI Y WIDJAJA AW YAMAMOTO K BIRD JP ISHIBASHI K AOYAGI Y SUGANO T AKIS R FERRY DK
Citation
Y. Ochiai et al., PHASE COHERENT AND INCOHERENT BACK SCATTERING OF ELECTRON WAVES IN CORRUGATION GATED QUANTUM WIRES, PHYSICS OF LOW-DIMENSIONAL STRUCTURES, 1-2, 1998, pp. 109-116
Citations number
10
Categorie Soggetti
Physics, Condensed Matter","Physics, Applied
Journal title
PHYSICS OF LOW-DIMENSIONAL STRUCTURES → ACNP
ISSN journal
02043467
Volume
1-2
Year of publication
1998
Pages
109 - 116
Database
ISI
SICI code
0204-3467(1998)1-2:<109:PCAIBS>2.0.ZU;2-4
Abstract
Low temperature magneto-transport has been studied in ballistic corrug ation gated wires. We have observed many resistance peaks overlapped w ith a large negative magneto-resistance in the double-corrugation wire at the low field magneto-resistance. Those peaks can be considered to arise from a coherent or an incoherent back scattering of the electro n waves. It is found that such a coherent back scattering leads to a b allistic weak localization or an electron focusing of the collimated e lectron waves.