BCCD exhibits a sequence of structural phase transitions from a high-symmetry
orthorhombic phase to different commensurate or incommensurate phases modulated along …

Inelastic neutron scattering on deuterated BCCD revealed a transverse acoustic branch of Λ
3 symmetry coupled to a soft polarisation branch Py (k) of same symmetry. As the transition …

The modulation wave vector q= δ (T) c* of deuterated betaine calcium chloride dihydrate (D-
BCCD) was measured as a function of the temperature for certain dc electric fields, using …

The incommensurate structure of BCCD at 130 K with q= 0.296 c* has been determined in
the superspace-group P (Pnma):(1, s,− 1) by means of single crystal X-ray diffraction data …

Betaine calcium chloride dihydrate exhibits a sequence of over eleven structurally
modulated phases, as well as a reentrant incommensurate phase. This work shows that a …

An elastic-neutron-scattering study of partially deuterated dihydrate betaine calcium chloride
(D-BCCD) is reported. We obtain direct diffraction evidence for the occurrence of a …

We construct a symmetry-based, competing-interaction model for the phase-transition
sequence in betaine calcium chloride dihydrate (BCCD). Our model qualitatively reproduces …

Electric fields applied along the b axis of deuterated betaine calcium chloride dihydrate
induce four main effects. The commensurate phases δ= 2/7 and 2/9 are more clearly …

In this work we present a study of elastic neutron scattering in deuterated betaine calcium
chloride dihydrate under hydrostatic pressure. This study provides clear evidence for the …

An elastic neutron scattering study of deuterated betaine calcium chloride dihydrate under
hydrostatic pressure is presented. It is shown that a previous phenomenological model …