Numerical evidences of polarization switching in PMN type relaxor ferroelectrics

E. Klotins; A. I. Popov; V. Pankratov; L. Shirmane; D. Engers

doi:10.1080/10584587.2011.570600

Numerical evidences of polarization switching in PMN type relaxor ferroelectrics

E. Klotins
, A. I. Popov
, V. Pankratov
, L. Shirmane
, D. Engers^*

^*Corresponding author for this work

University of Latvia

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

We present a conceptual and computational framework for chemically ordered Pb(Mg_1/3Nb_2/3O₃) (PMN) type supercells violating disorder of the host lattice. The effective Hamiltonian is specified by invariance under permutations of supercells and by the dipole-dipole interaction supporting both local nonzero and zero mean polarization of the structure. Statistics treated in canonical ensemble within the mean field approach reveals emergence of polar nanoregions as supported by interplay between the (random) initial state polarization of supercells and their interactions increased at cooling.

Original language	English
Pages (from-to)	32-39
Number of pages	8
Journal	Integrated Ferroelectrics
Volume	123
Issue number	1
DOIs	https://doi.org/10.1080/10584587.2011.570600
Publication status	Published - 2011
Event	Annual International Conference "Functional Materials and Nanotechnologies", FM and NT-2010 - Riga, Latvia Duration: 16 Mar 2010 → 19 Mar 2010

Keywords

polar nano regions
Relaxor ferroelectrics
supercells

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10.1080/10584587.2011.570600

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title = "Numerical evidences of polarization switching in PMN type relaxor ferroelectrics",

abstract = "We present a conceptual and computational framework for chemically ordered Pb(Mg1/3Nb2/3O3) (PMN) type supercells violating disorder of the host lattice. The effective Hamiltonian is specified by invariance under permutations of supercells and by the dipole-dipole interaction supporting both local nonzero and zero mean polarization of the structure. Statistics treated in canonical ensemble within the mean field approach reveals emergence of polar nanoregions as supported by interplay between the (random) initial state polarization of supercells and their interactions increased at cooling.",

keywords = "polar nano regions, Relaxor ferroelectrics, supercells",

author = "E. Klotins and Popov, \{A. I.\} and V. Pankratov and L. Shirmane and D. Engers",

year = "2011",

doi = "10.1080/10584587.2011.570600",

language = "English",

volume = "123",

pages = "32--39",

journal = "Integrated Ferroelectrics",

issn = "1058-4587",

publisher = "Taylor and Francis Ltd.",

number = "1",

note = "Annual International Conference {"}Functional Materials and Nanotechnologies{"}, FM and NT-2010 ; Conference date: 16-03-2010 Through 19-03-2010",

}

TY - JOUR

T1 - Numerical evidences of polarization switching in PMN type relaxor ferroelectrics

AU - Klotins, E.

AU - Popov, A. I.

AU - Pankratov, V.

AU - Shirmane, L.

AU - Engers, D.

PY - 2011

Y1 - 2011

N2 - We present a conceptual and computational framework for chemically ordered Pb(Mg1/3Nb2/3O3) (PMN) type supercells violating disorder of the host lattice. The effective Hamiltonian is specified by invariance under permutations of supercells and by the dipole-dipole interaction supporting both local nonzero and zero mean polarization of the structure. Statistics treated in canonical ensemble within the mean field approach reveals emergence of polar nanoregions as supported by interplay between the (random) initial state polarization of supercells and their interactions increased at cooling.

AB - We present a conceptual and computational framework for chemically ordered Pb(Mg1/3Nb2/3O3) (PMN) type supercells violating disorder of the host lattice. The effective Hamiltonian is specified by invariance under permutations of supercells and by the dipole-dipole interaction supporting both local nonzero and zero mean polarization of the structure. Statistics treated in canonical ensemble within the mean field approach reveals emergence of polar nanoregions as supported by interplay between the (random) initial state polarization of supercells and their interactions increased at cooling.

KW - polar nano regions

KW - Relaxor ferroelectrics

KW - supercells

UR - https://www.scopus.com/pages/publications/79961198373

U2 - 10.1080/10584587.2011.570600

DO - 10.1080/10584587.2011.570600

M3 - Conference article

AN - SCOPUS:79961198373

SN - 1058-4587

VL - 123

SP - 32

EP - 39

JO - Integrated Ferroelectrics

JF - Integrated Ferroelectrics

IS - 1

T2 - Annual International Conference "Functional Materials and Nanotechnologies", FM and NT-2010

Y2 - 16 March 2010 through 19 March 2010

ER -

Numerical evidences of polarization switching in PMN type relaxor ferroelectrics

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Keywords

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