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Fractional quantum Hall effect in multilayer electron systems

โœ Scribed by Y.W. Suen; J. Jo; M.B. Santos; L.W. Engel; M. Shayegan

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
614 KB
Volume
184
Category
Article
ISSN
0921-4526

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โœฆ Synopsis

We present several novel quasi-two-dimensional electron systems with an additional degree of freedom. These include systems which contain two or more layers of electrons in close proximity so that interlayer Coulomb interactions are strong, and thick-layer electron systems in wide parabolic wells. The magneto-transport data in these systems exhibit new phenomena: examples include the observation of a fractional quantum Hall state at the even-denominator u = 1/2 filling and an insulating phase reentrant around the u = 1/3 fractional state in a double-layer electron system in a wide quantum well.

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โœ C.W.J. Beenakker; B. Rejaei ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 562 KB

A recent mean-field approach to the fractional quantum Hall effect (QHE) is reviewed, with a special emphasis on the application to single-electron tunneling through a quantum dot in a high magnetic field. The theory is based on the adiabatic principle of Greiter and Wilczek, which maps an incompres