Specific Heat of Two-Dimensional Electrons in GaAs-GaAlAs Multilayers
- 22 April 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 54 (16) , 1820-1823
- https://doi.org/10.1103/physrevlett.54.1820
Abstract
We report the first observation of the magnetic-field-dependent electronic specific heat in GaAs-GaAs multilayers. With a heat-pulse technique oscillations of the sample temperature on the order of millikelvins were observed. Both intra- and inter-Landau-level contributions could be distinguished. Theoretical fits to the data reveal a density of states consisting of Gaussian peaks on a flat background.Keywords
This publication has 8 references indexed in Scilit:
- Magnetization measurements on a two-dimensional electron systemSurface Science, 1984
- Analysis of quantized Hall resistance at finite temperaturesSurface Science, 1984
- Specific heat and magneto-thermal oscillations of two-dimensional electron gas in a magnetic fieldSolid State Communications, 1984
- Metal-Insulator Transition in Disordered Germanium-Gold AlloysPhysical Review Letters, 1981
- Upper critical fields in granular superconductorsPhysical Review B, 1980
- Heat capacity and thermal conductivity of sintered Al2O3 at low temperatures by the heat pulse techniqueJournal of Applied Physics, 1975
- Heat Capacity Measurements on Small Samples at Low TemperaturesReview of Scientific Instruments, 1972
- Magnetothermal Oscillations. The Oscillatory Dependence of Temperature on Magnetic FieldPhysical Review B, 1962