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

Počet záznamů: 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.

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SYSNO ASEP	0463188
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Electric-field influence on the neutron diffuse scattering near the ferroelectric transition of Sr_0.61Ba_0.39Nb₂O₆
Tvůrce(i)	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}
Zdroj.dok.	Phase Transitions. - : Taylor & Francis - ISSN 0141-1594 Roč. 89, 7-8 (2016), s. 808-815
Poč.str.	8 s.
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	relaxor ferroelectrics ; lead-free ; strontium barium niobate ; neutron scattering ; dielectric spectroscopy
Vědní obor RIV	BM - Fyzika pevných látek a magnetismus
CEP	GA16-09142S GA ČR - Grantová agentura ČR
Institucionální podpora	FZU-D - RVO:68378271
UT WOS	000382772300019
EID SCOPUS	84973138139
DOI	10.1080/01411594.2016.1186275
Anotace	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.
Pracoviště	Fyzikální ústav
Kontakt	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Rok sběru	2017

Počet záznamů: 1