Electric-field influence on the neutron diffuse scattering near the ferroelectric transition of Sr.sub.0.61./sub.Ba.sub.0.39./sub.Nb.sub.2./sub.O.sub.6./sub.

Ondrejkovič, Petr; Kempa, Martin; Savinov, Maxim; Bednyakov, Petr; Kulda, J.; Bourges, P.; Dec, J.; Hlinka, Jiří

doi:https://dx.doi.org/10.1080/01411594.2016.1186275

Number of the records: 1

Electric-field influence on the neutron diffuse scattering near the ferroelectric transition of Sr.sub.0.61./sub.Ba.sub.0.39./sub.Nb.sub.2./sub.O.sub.6./sub.

1.

SYSNO ASEP	0463188
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Electric-field influence on the neutron diffuse scattering near the ferroelectric transition of Sr_0.61Ba_0.39Nb₂O₆
Author(s)	Ondrejkovič, Petr (FZU-D)_{RID, ORCID} Kempa, Martin (FZU-D)_{RID, ORCID} Savinov, Maxim (FZU-D)_{RID, ORCID} Bednyakov, Petr (FZU-D)_{RID, ORCID} Kulda, J. (FR) Bourges, P. (FR) Dec, J. (PL) Hlinka, Jiří (FZU-D)_{RID, ORCID}
Source Title	Phase Transitions. - : Taylor & Francis - ISSN 0141-1594 Roč. 89, 7-8 (2016), s. 808-815
Number of pages	8 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	relaxor ferroelectrics ; lead-free ; strontium barium niobate ; neutron scattering ; dielectric spectroscopy
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	GA16-09142S GA ČR - Czech Science Foundation (CSF)
Institutional support	FZU-D - RVO:68378271
UT WOS	000382772300019
EID SCOPUS	84973138139
DOI	10.1080/01411594.2016.1186275
Annotation	Uniaxial relaxor ferroelectric Sr0.61Ba0.39Nb2O6 single crystal has been investigated in the vicinity of its phase transition using neutron scattering and dielectric spectroscopy. A global-type thermal hysteresis is evidenced by both techniques in the ferroelectric phase and up to about 15 K above Tc. In addition, a part of the transverse neutron diffuse scattering in the 001 Brillouin zone, presumably related to static nanodomain structure, can be suppressed by prior poling the crystal in electric field of 3 kV/cm. The remaining part of the transverse neutron diffuse scattering and the real part of permittivity show a similar temperature dependence. The temperature position of the maximal scattering intensity Tmax depends significantly on the scattering wave vector. Tmax shifts monotonically to higher temperature with the increasing wave vector in all investigated cooling and heating regimes.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2017

Number of the records: 1