๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Temperature dependence of conductivity in multi-subband quantum wires

โœ Scribed by Arisato Kawabata

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
164 KB
Volume
227
Category
Article
ISSN
0921-4526

No coin nor oath required. For personal study only.

โœฆ Synopsis

Tomonaga-Luttinger liquid theory is extended to multi-subband quasi-one-dimensional systems in order to apply it to a realistic model of quantum wires. We use standard thermal Green's method and discuss the temperature dependence of the conductivity. With this method we can treat the long-range coulomb interaction between electrons, and in this case the conductivity behaves like T ~, where c~ is roughly equal to the inverse of the number of the occupied subbands.

๐Ÿ“œ SIMILAR VOLUMES

Universal conductance fluctuations in a
Universal conductance fluctuations in a multi-subband quantum well
โœ H.A. Carmona; A.K. Geim; C.J.G.M. Langerak; T.J. Foster; C.V. Brown; P.C. Main; ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 253 KB

We have investigated mesoscopic conductance fluctuations in a GaAs quantum well with five electrically quantised two-dimensional (2D) subbands occupied. The conductance fluctuations occur even in a magnetic field p~rallei to the plane. We attribute the fluctuations to rapid electron-impurity scatter

Magnetic anticrossing of 1D subbands in
Magnetic anticrossing of 1D subbands in ballistic double quantum wires
โœ M.A. Blount; J.A. Simmons; J.S. Moon; S.K. Lyo; J.R. Wendt; J.L. Reno ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 701 KB

We study the low-temperature in-plane magnetoconductance of vertically coupled double quantum wires. Using a novel flip-chip technique, the wires are defined by two pairs of mutually aligned split gates on opposite sides of a โ‰ค1 micron thick AlGaAs/GaAs double quantum well heterostructure. We observ