Evidence for a new dissipationless effect in 2D electronic transport

M. A. Zudov, R. R. Du, L. N. Pfeiffer, K. W. West

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In an ultraclean 2D electron system (2DES) subjected to crossed millimeterwave (30–150 GHz) and weak ([Formula presented]) 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.

Original languageEnglish (US)
Article number046807
Pages (from-to)468071-468074
Number of pages4
JournalPhysical Review Letters
Issue number4
StatePublished - Jan 31 2003


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