Phys. Rev. Lett. 93, 146804 (2004) [4 pages]Imaging of Cyclotron Emission from Edge Channels in Quantum Hall ConductorsReceived 1 April 2004; published 29 September 2004 A local probing technique of cyclotron emission is applied to image nonequilibrium electrons generated along edge channels in quantum Hall conductors. In a lower-magnetic field region of a quantum Hall state plateau (filling factor 2<ν), cyclotron emission is found to occur along the boundary of a conductor on the side of lower potential (with positive Hall voltage). The emission indicates that electrons are accumulated in the first-excited Landau level, while they are depleted in the lowest Landau level along the boundary as a consequence of adiabatic-transport. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.146804
DOI:
10.1103/PhysRevLett.93.146804
PACS:
73.43.Qt, 07.60.Pb, 73.43.Fj, 78.66.–w
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