Počet záznamů: 1

Closed-circuit domain quadruplets in BaTiO.sub.3./sub. nanorods embedded in a SrTiO.sub.3./sub. film

SYSNO ASEP	0427116
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Closed-circuit domain quadruplets in BaTiO₃ nanorods embedded in a SrTiO₃ film
Tvůrce(i)	Stepkova, Vilgelmina (FZU-D)_{RID, ORCID} Márton, Pavel (FZU-D)_{RID, ORCID} Setter, N. (CH) Hlinka, Jiří (FZU-D)_{RID, ORCID}
Zdroj.dok.	Physical Review. B - ISSN 1098-0121 Roč. 89, č. 6 (2014), "060101-1"-"060101-6"
Poč.str.	5 s.
Jazyk dok.	eng - angličtina
Země vyd.	US - Spojené státy americké
Klíč. slova	Ginzburg-Landau-Devonshire model ; phase-field approach ; nanorods ; BaTiO₃/SrTiO₃ heterostructures
Vědní obor RIV	BM - Fyzika pevných látek a magnetismus
CEP	GAP204/11/1011 GA ČR - Grantová agentura ČR
Institucionální podpora	FZU-D - RVO:68378271
UT WOS	000332372000001
EID SCOPUS	84897622979
DOI	10.1103/PhysRevB.89.060101
Anotace	Cylindrical BaTiO3 nanorods embedded in 100 -oriented SrTiO3 epitaxial film in a brushlike configuration are investigated in the framework of the Ginzburg-Landau-Devonshire model. It is shown that strain compatibility at BaTiO3/SrTiO3 interfaces keeps BaTiO3 nanorods in the rhombohedral phase even at room temperature. Depolarization field at the BaTiO3/SrTiO3 interfaces is reduced by an emission of the 109 or 71-degree domain boundaries. In case of 10–80-nm diameter nanorods, the ferroelectric domains are found to form a quadruplet with a robust flux-closure arrangement of the in-plane components of the spontaneous polarization. The out-of-plane components of the polarization are either balanced or oriented up or down along the nanorod axis. More complex stable domain configurations with coexisting clockwise and anticlockwise quadruplets contain interesting arrangement of strongly curved 71-degree boundaries.
Pracoviště	Fyzikální ústav
Kontakt	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Rok sběru	2015

Počet záznamů: 1