Coherent intergrowth of simple cubic and quintuple tetragonal perovskites in the system Nd2-epsilon Ba3+epsilon(Fe,Co)(5)O15-delta / Kundu Asish K.,Mychinko Mikhail Yu,Caignaert Vincent,Lebedev Oleg I.,Volkova Nadezhda E.,Deryabina Ksenia M.,Cherepanov Vladimir A.,Raveau Bernard // JOURNAL OF SOLID STATE CHEMISTRY. - 2015. - V. 231, l. . - P. 36-41.

ISSN/EISSN:

0022-4596 / 1095-726X

Type:

Article

Abstract:

Investigation of the Nd2-epsilon Ba3+epsilon(Fe,Co)(5)O15-delta system, combining X-ray diffraction and electron microscopy, has allowed a tetragonal quintuple ordered perovskite ``a(p) x ap x 5a(p){''} phasoid inter-grown within a single cubic perovskite matrix to be evidenced for epsilon=0. This nanoscale chemically twinned perovskite is compared with other members, Ln=Sm, Eu, Pr. The unusual long range ordering of the layers develops strains due to size mismatch between Ba2+ and Ln(3+) cations. Importantly, two factors allow the strains to be decreased: (i) special intergrowths of double (LnBaFe(2)O(6-delta)) and triple (LnBa(2)Fe(3)O(9-delta)) perovskite ribbons/layers oriented at 90 degrees, (ii) nanoscale chemical twinning. The spin locking effect of the nanodomain boundaries upon the magnetic properties of these perovskites is discussed. (C) 2015 Elsevier Inc. All rights reserved.

Author keywords:

Cobalto ferrites; Quintuple perovskites; Nanoscale ordering; Antiferromagnetic ordering SM; MAGNETISM; ND; LN

DOI:

10.1016/j.jssc.2015.07.050

Web of Science ID:

ISI:000362861100006

Соавторы в МНС:

Другие поля

Поле	Значение
Month	NOV
Publisher	ACADEMIC PRESS INC ELSEVIER SCIENCE
Address	525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
Language	English
EISSN	1095-726X
Keywords-Plus	SM; MAGNETISM; ND; LN
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Inorganic \& Nuclear; Chemistry, Physical
Author-Email	bernard.raveau@ensicaen.fr
ResearcherID-Numbers	Cherepanov, Vladimir/E-6451-2014
ORCID-Numbers	Cherepanov, Vladimir/0000-0003-3653-6459
Funding-Acknowledgement	Ministry of Education and Science of Russian Federation {[}4. 1039.2014/K]; CNRS-ENSICAEN
Funding-Text	The research performed by the authors from Ural Federal University has been made within the State Task from the Ministry of Education and Science of Russian Federation (Project no. 4. 1039.2014/K). AKK wants to thank CNRS-ENSICAEN for financial support.
Number-of-Cited-References	16
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	22
Journal-ISO	J. Solid State Chem.
Doc-Delivery-Number	CT5PA