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- Petrashov, V. T., et al.
(författare)
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Electric field effects and screening in mesoscopic bismuth wires
- 1991
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Ingår i: Journal of Physics Condensed Matter. - : IOP Publishing. - 0953-8984 .- 1361-648X. ; 3:Copyright 1992, IEE, s. 9705-11
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Tidskriftsartikel (refereegranskat)abstract
- Large time-independent conduction fluctuations were observed as a function of transverse electric field in thin (25 nm) and narrow (60 nm) bismuth wires. The conduction of leads far away from a gate capacitor was influenced by changes in the gate voltage. The effects are interpreted as being due to a variation in the Fermi wavelength caused by gate-induced changes in the charge concentration of the leads rather than an electrostatic Aharonov-Bohm-type interference. The screening of charge is strongly reduced in narrow wires
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