Home
For authors
Submission status

Archive
Archive (English)
Current
   Volumes 113-120
   Volumes 93-112
      Volume 112
      Volume 111
      Volume 110
      Volume 109
      Volume 108
      Volume 107
      Volume 106
      Volume 105
      Volume 104
      Volume 103
      Volume 102
      Volume 101
      Volume 100
      Volume 99
      Volume 98
      Volume 97
      Volume 96
      Volume 95
      Volume 94
      Volume 93
Search
VOLUME 101 (2015) | ISSUE 2 | PAGE 131
Temperature derivative of the chemical potential and its magnetooscillations in two-dimensional system
Abstract
We report first thermodynamic measurements of the temperature derivative of chemical potential (\partial \mu/\partial T) in two-dimensional (2D) electron systems. In order to test the technique we have chosen Schottky gated GaAs/AlGaAs heterojunctions and detected experimentally in this 2D system quantum magnetooscillations of \partial \mu/\partial T. We also present a Lifshits-Kosevitch type theory for the \partial \mu/\partial T magnetooscillations in 2D systems and compare the theory with experimental data. The magnetic field dependence of the \partial \mu/\partial T value appears to be sensitive to the density of states shape of Landau levels. The data in low magnetic field domain demonstrate brilliant agreement with theory for non-interacting Fermi gas with Lorentzian Landau level shape.