DIPOLAR CORRELATION TIMES IN FERROELECTRIC HCl-DCl MIXED CRYSTALS.

M. Crowley, J. Brookeman, A. Rigamonti

Research output: Contribution to journalConference articlepeer-review

Abstract

**3**5Cl NOR relaxation measurements are used to derive the correlation times tau for the reorientation of both HCl and DCl dipoles in the ferroelectric phase of HCl-DCl mixed crystals. The tau s for DCl are reasonably consistent with a theoretical picture based on a dynamical Ising model in a transverse field which includes damping in a heuristic way. For the HCl dipoles this picture does not account for the tau s in the dilute limit of almost complete deuteration, where persistence of a quantum tunnelling contribution to the reorientations, namely short tau s, is observed, in spite of the coupling to the DCl dipoles with long correlation times.

Original languageEnglish
Pages (from-to)405-408
Number of pages4
JournalFerroelectrics
Volume54
Issue number1-4
StatePublished - Jan 1 1983
Externally publishedYes
EventProc of the Eur Meet on Ferroelectr, 5th - Malaga, Sp
Duration: Sep 26 1983Sep 30 1983

Fingerprint

Dive into the research topics of 'DIPOLAR CORRELATION TIMES IN FERROELECTRIC HCl-DCl MIXED CRYSTALS.'. Together they form a unique fingerprint.

Cite this