BALLISTIC TRANSPORT OF COMPOSITE FERMIONS IN NARROW CROSS JUNCTIONS

Authors
HERFORT J TAKAGAKI Y HEY R FRIEDLAND KJ PLOOG K MAUDE DK PORTAL JC TAKAHARA J GAMO K
Citation
J. Herfort et al., BALLISTIC TRANSPORT OF COMPOSITE FERMIONS IN NARROW CROSS JUNCTIONS, Journal of physics. Condensed matter, 7(49), 1995, pp. 9563-9570
Citations number
28
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
7
Issue
49
Year of publication
1995
Pages
9563 - 9570
Database
ISI
SICI code
0953-8984(1995)7:49<9563:BTOCFI>2.0.ZU;2-S
Abstract
The transport properties of the half-filled Landau level in crossed-wi re junctions are presented. A dip in the bend resistance due to ballis tic transmission of composite fermions has been observed near v = 1/2 and 1/4. The temperature dependence of the dips is found to be strong due to the small Fermi energy of the composite fermions. The dips are found to shift to lower magnetic fields, indicating that the effective magnetic field for the composite fermions in the narrow channel is no t uniform.