Double-layered Aurivillius-type ferroelectrics with magnetic moments

A. B. Missyul; I. A. Zvereva; T. T. M. Palstra; A. I. Kurbakov

doi:10.1016/j.materresbull.2010.02.002

Double-layered Aurivillius-type ferroelectrics with magnetic moments

A. B. Missyul^*, I. A. Zvereva, T. T. M. Palstra, A. I. Kurbakov

^*Corresponding author for this work

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Abstract

We have synthesized the double-layer Aurivillius phase Bi(2)LnNbTiO(9) where Ln = Nd-Gd, Bi. All compounds adopt the orthorhombic polar space group A2(I)am. The magnetic Ln-ion occupies the cuboctahedral position in the middle of the perovskite double-layer, and thus controls the octahedral tilt of the perovskite block. This tilt modifies the ferroelectric displacement of the (Nb,Ti) towards the octahedral faces. This provides a mechanism to systematically modify the polarization. Mn-substitution on the (Nb.Ti) site for Ln = Bi is homogeneous up to x = 0.2. The magnetic moments of In do not order down to 5 K. (C) 2010 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	546-550
Number of pages	5
Journal	Materials Research Bulletin
Volume	45
Issue number	5
DOIs	https://doi.org/10.1016/j.materresbull.2010.02.002
Publication status	Published - May-2010

Keywords

Ceramics
Chemical synthesis
Neutron scattering
X-ray diffraction
Ferroelectricity

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title = "Double-layered Aurivillius-type ferroelectrics with magnetic moments",

abstract = "We have synthesized the double-layer Aurivillius phase Bi(2)LnNbTiO(9) where Ln = Nd-Gd, Bi. All compounds adopt the orthorhombic polar space group A2(I)am. The magnetic Ln-ion occupies the cuboctahedral position in the middle of the perovskite double-layer, and thus controls the octahedral tilt of the perovskite block. This tilt modifies the ferroelectric displacement of the (Nb,Ti) towards the octahedral faces. This provides a mechanism to systematically modify the polarization. Mn-substitution on the (Nb.Ti) site for Ln = Bi is homogeneous up to x = 0.2. The magnetic moments of In do not order down to 5 K. (C) 2010 Elsevier Ltd. All rights reserved.",

keywords = "Ceramics, Chemical synthesis, Neutron scattering, X-ray diffraction, Ferroelectricity",

author = "Missyul, {A. B.} and Zvereva, {I. A.} and Palstra, {T. T. M.} and Kurbakov, {A. I.}",

year = "2010",

month = may,

doi = "10.1016/j.materresbull.2010.02.002",

language = "English",

volume = "45",

pages = "546--550",

journal = "Materials Research Bulletin",

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TY - JOUR

T1 - Double-layered Aurivillius-type ferroelectrics with magnetic moments

AU - Missyul, A. B.

AU - Zvereva, I. A.

AU - Palstra, T. T. M.

AU - Kurbakov, A. I.

PY - 2010/5

Y1 - 2010/5

N2 - We have synthesized the double-layer Aurivillius phase Bi(2)LnNbTiO(9) where Ln = Nd-Gd, Bi. All compounds adopt the orthorhombic polar space group A2(I)am. The magnetic Ln-ion occupies the cuboctahedral position in the middle of the perovskite double-layer, and thus controls the octahedral tilt of the perovskite block. This tilt modifies the ferroelectric displacement of the (Nb,Ti) towards the octahedral faces. This provides a mechanism to systematically modify the polarization. Mn-substitution on the (Nb.Ti) site for Ln = Bi is homogeneous up to x = 0.2. The magnetic moments of In do not order down to 5 K. (C) 2010 Elsevier Ltd. All rights reserved.

AB - We have synthesized the double-layer Aurivillius phase Bi(2)LnNbTiO(9) where Ln = Nd-Gd, Bi. All compounds adopt the orthorhombic polar space group A2(I)am. The magnetic Ln-ion occupies the cuboctahedral position in the middle of the perovskite double-layer, and thus controls the octahedral tilt of the perovskite block. This tilt modifies the ferroelectric displacement of the (Nb,Ti) towards the octahedral faces. This provides a mechanism to systematically modify the polarization. Mn-substitution on the (Nb.Ti) site for Ln = Bi is homogeneous up to x = 0.2. The magnetic moments of In do not order down to 5 K. (C) 2010 Elsevier Ltd. All rights reserved.

KW - Ceramics

KW - Chemical synthesis

KW - Neutron scattering

KW - X-ray diffraction

KW - Ferroelectricity

U2 - 10.1016/j.materresbull.2010.02.002

DO - 10.1016/j.materresbull.2010.02.002

M3 - Article

VL - 45

SP - 546

EP - 550

JO - Materials Research Bulletin

JF - Materials Research Bulletin

SN - 0025-5408

IS - 5

ER -