Systematic Studies of the Fractional Quantum Hall Effect

Content Provider	Scilit
Author	Nicholas, R. J. Clark, R. G. Usher, A. Mallett, J. R. Suckling, A. M. Harris, J. J. Foxon, C. T.
Copyright Year	1987
Description	Journal: Physica Scripta A description is given of the occurrence of fractional quantum Hall effects, and how these are influenced by the presence of disorder. It is shown that when electrons are photoexcited into a GaAs-GaAlAs heterojunction, the fractional state existing at a Landau level occupancy of 7/5 can dominate over that at 4/3. Activation energy measurements of the resistivity show how the energy gap of the fractional states is reduced by the presence of disorder. A new method of analysis of the resistivity minima is presented which is used to give information on the correlation length of the many body ground state.
Related Links	https://iopscience.iop.org/article/10.1088/0031-8949/1987/T19A/012/pdf
Ending Page	78
Page Count	7
Starting Page	72
ISSN	00318949
e-ISSN	14024896
DOI	10.1088/0031-8949/1987/t19a/012
Journal	Physica Scripta
Volume Number	T19A
Language	English
Publisher	IOP Publishing
Publisher Date	1987-01-01
Access Restriction	Open
Subject Keyword	Journal: Physica Scripta Quantum Science and Technology Systematic Studies Hall Effect Fractional Quantum Hall
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Mathematical Physics Condensed Matter Physics