Dynamic localization in continuous ac electric fields

P. Domachuk, C. Martijn De Sterke, J. Wan, M. M. Dignam

Research output: Contribution to journalArticlepeer-review

Abstract

We present a detailed examination of the properties of ac electric fields that result in the dynamic localization of electrons in periodic potentials. Although exact dynamic localization can only occur if the ac electric fields are discontinuous at all changes in sign, we show that it is surprisingly tolerant to smoothing these discontinuities. We also show that within the nearest-neighbor tight-binding limit, all symmetric ac electric fields are guaranteed to exhibit dynamic localization for some field amplitude provided that the vector potential and electric field are never zero simultaneously. Finally, we derive an area theorem for symmetric electric fields with only two zeros per period.

Original languageEnglish (US)
Article number165313
Pages (from-to)1653131-16531310
Number of pages14878180
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number16
DOIs
StatePublished - Oct 15 2002

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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