Double-layered Aurivillius-type ferroelectrics with magnetic moments

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

Research output: Contribution to journal › Article › Academic › peer-review

21 Citations (Scopus)

Abstract

We have synthesized the double-layer Aurivillius phase Bi2LnNbTiO9 where Ln = Nd–Gd, Bi. All compounds adopt the orthorhombic polar space group A21am. 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 Ln do not order down to 5 K.

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

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

abstract = "We have synthesized the double-layer Aurivillius phase Bi2LnNbTiO9 where Ln = Nd–Gd, Bi. All compounds adopt the orthorhombic polar space group A21am. 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 Ln do not order down to 5 K.",

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

year = "2010",

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

AU - Missyul, A.B.

AU - Zvereva, I.A.

AU - Palstra, Thom T.M.

AU - Kurbakov, A.I.

PY - 2010/5

Y1 - 2010/5

N2 - We have synthesized the double-layer Aurivillius phase Bi2LnNbTiO9 where Ln = Nd–Gd, Bi. All compounds adopt the orthorhombic polar space group A21am. 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 Ln do not order down to 5 K.

AB - We have synthesized the double-layer Aurivillius phase Bi2LnNbTiO9 where Ln = Nd–Gd, Bi. All compounds adopt the orthorhombic polar space group A21am. 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 Ln do not order down to 5 K.

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 -