Evidence for a new dissipationless effect in 2D electronic transport

In an ultraclean 2D electron system (2DES) subjected to crossed millimeterwave (30-150 GHz) and weak (B<2 kG) magnetic fields, a series of apparently dissipationless states emerges as the system is detuned from cyclotron resonances. Such states are characterized by an exponentially vanishing low-...

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Bibliographic Details
Published inPhysical review letters Vol. 90; no. 4; p. 046807
Main Authors Zudov, M A, Du, R R, Pfeiffer, L N, West, K W
Format Journal Article
LanguageEnglish
Published United States 31.01.2003
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Summary:In an ultraclean 2D electron system (2DES) subjected to crossed millimeterwave (30-150 GHz) and weak (B<2 kG) magnetic fields, a series of apparently dissipationless states emerges as the system is detuned from cyclotron resonances. Such states are characterized by an exponentially vanishing low-temperature diagonal resistance and a classical Hall resistance. The activation energies associated with such states exceed the Landau level spacing by an order of magnitude. Our findings are likely indicative of a collective ground state previously unknown for 2DES.
ISSN:0031-9007
DOI:10.1103/physrevlett.90.046807