Superspin glass phase and hierarchy of interactions in multiferroic PbFe.sub.1/2./sub.Sb.sub.1/2./sub.O.sub.3./sub.: an analog of ferroelectric relaxors?

Laguta, Valentyn; Stephanovich, V. A.; Savinov, Maxim; Maryško, Miroslav; Kuzian, R. O.; Kondakova, I.V.; Olekhnovich, N.M.; Pushkarev, A.V.; Radyush, Yu.V.; Raevski, I. P.; Raevskaya, S. I.; Prosandeev, S. A.

doi:https://dx.doi.org/10.1088/1367-2630/16/11/113041

Number of the records: 1

Superspin glass phase and hierarchy of interactions in multiferroic PbFe.sub.1/2./sub.Sb.sub.1/2./sub.O.sub.3./sub.: an analog of ferroelectric relaxors?

1.

SYSNO ASEP	0439529
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Superspin glass phase and hierarchy of interactions in multiferroic PbFe_1/2Sb_1/2O₃: an analog of ferroelectric relaxors?
Author(s)	Laguta, Valentyn (FZU-D)_{RID, ORCID} Stephanovich, V. A. (PL) Savinov, Maxim (FZU-D)_{RID, ORCID} Maryško, Miroslav (FZU-D)_RID Kuzian, R. O. (UA) Kondakova, I.V. (UA) Olekhnovich, N.M. (BY) Pushkarev, A.V. (BY) Radyush, Yu.V. (BY) Raevski, I. P. (RU) Raevskaya, S. I. (RU) Prosandeev, S. A. (RU)
Source Title	New Journal of Physics. - : Institute of Physics Publishing - ISSN 1367-2630 Roč. 16, Nov (2014), "113041-1"-"113041-19"
Number of pages	19 s.
Language	eng - English
Country	DE - Germany
Keywords	multiferroics ; spin glass ; superantiferromagnetism ; ferroelectrics ; relaxors
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	GA13-11473S GA ČR - Czech Science Foundation (CSF)
Institutional support	FZU-D - RVO:68378271
UT WOS	000346763600004
EID SCOPUS	84918516032
DOI	https://doi.org/10.1088/1367-2630/16/11/113041
Annotation	New perovskite multiferroic PbFe1/2Sb1/2O3 with a high degree (up to 0.9) of chemical ordering and unexpectedly high-temperature magnetic relaxor properties, which can barely be described within concepts of conventional spin glass physics was fabricated. The field-temperature phase diagram of this material, in the extremely wide temperature interval, contains the de Almeida–Thouless-type critical line. This was explained by the creation, at high temperatures of not less than 250 K, of giant superspins (SSs), owing, curiously enough, to the antiferromagnetic superexchange interaction. Analysis of the above complex physical picture was performed with the ab initio calculations and random field approach.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2015

Number of the records: 1