## Abstract

Under a strong ac drive the zero-frequency linear response dissipative resistivity [Formula presented] of a homogeneous state is allowed to become negative. We show that such a state is absolutely unstable. The only time-independent state of a system with a [Formula presented] is characterized by a current which almost everywhere has a magnitude [Formula presented] fixed by the condition that the nonlinear dissipative resistivity [Formula presented]. As a result, the dissipative component of the dc-electric field vanishes. The total current may be varied by rearranging the current pattern appropriately with the dissipative component of the dc-electric field remaining zero. This result, together with the calculation of Durst et al., indicating the existence of regimes of applied ac microwave field and dc magnetic field where [Formula presented], explains the zero-resistance state observed by Mani et al. and Zudov et al.

Original language | English |
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Journal | Physical Review Letters |

Volume | 91 |

Issue number | 5 |

DOIs | |

Publication status | Published - 1 Aug 2003 |

Externally published | Yes |