EFFECT OF ELECTRIC-FIELDS ON MODULATED STRUCTURE OF DEUTERATED BETAINE CALCIUM-CHLORIDE DIHYDRATE

Authors
CHAVES MR ALMEIDA A TOLEDANO JC SCHNECK J KIAT JM SCHWARZ W RIBEIRO JL KLOPPERPIEPER A ALBERS J MUSER HE
Citation
Mr. Chaves et al., EFFECT OF ELECTRIC-FIELDS ON MODULATED STRUCTURE OF DEUTERATED BETAINE CALCIUM-CHLORIDE DIHYDRATE, Physical review. B, Condensed matter, 48(18), 1993, pp. 13318-13325
Citations number
20
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
48
Issue
18
Year of publication
1993
Pages
13318 - 13325
Database
ISI
SICI code
0163-1829(1993)48:18<13318:EOEOMS>2.0.ZU;2-D
Abstract
The modulation wave vector q=delta(T)c of deuterated betaine calcium chloride dihydrate (D-BCCD) was measured as a function of the temperat ure for certain dc electric fields, using elastic neutron scattering. The results obtained are compared with the behavior of the dielectric constant of electric-field-biased D-BCCD. The temperature range of sta bility of the polar phases with delta=2/7, 4/15, 2/9, 2/11 increases w ith a dc electric field along b. The results are discussed qualitative ly, in terms of Landau theory.