Landolt-Börnstein - Group III Condensed Matter

8.2 Finite temperature

Abstract

This chapter discusses literature on finite temperature of lateral superlattices. The measurement of conductance as a function of temperature and gate voltage is shown. At high temperatures, the resistance increased slowly with decreasing temperature in accordance with WL theory, while it showed activation-type behaviour at low temperature. The experiments in which the temperature dependence of different phenomena observed in the magneto resistance (MR) was examined. The behavior of the phase coherence length as a function of temperature is shown. The inelastic scattering length as a function of temperature was extracted from magneto conductance (MC) measurements via weak-localization theory is shown. Resistance versus heating current is illustrated. Temperature profile along the wire for heating currents that rise in steps of 150 nA starting from zero current and rising to 3000 nA is shown.

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Title
8.2 Finite temperature
Book Title
Electronic Transport. Part 1: Quantum Point Contacts and Quantum Wires
In
8 Lateral superlattices
Book DOI
10.1007/b55682
Chapter DOI
10.1007/10479560_50
Part of
Landolt-Börnstein - Group III Condensed Matter
Volume
34B1
Editors
  • B. Kramer
  • Authors
  • A. Fechner
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