Artificial Dielectric Superlattices with Broken Inversion Symmetry

Maitri P. Warusawithana, Eugene V. Colla, J. N. Eckstein, M. B. Weissman

Research output: Contribution to journalArticlepeer-review

Abstract

A variety of three-constituent superlattice patterns were made in atomic layer-by-layer films, with patterns breaking inversion symmetry giving effective permanent bias fields ranging up to about 200 kV/cm. Dielectric constants at room temperature were nearly [Formula presented], with loss tangents under 0.01. Most of the response came from discrete dipoles comprising multiple unit cells, but without any ferroelectric phase transition.

Original languageEnglish (US)
Number of pages1
JournalPhysical review letters
Volume90
Issue number3
DOIs
StatePublished - Jan 1 2003

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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