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^*

^*Šī darba korespondējošais autors

University of Latvia

Zinātniskās darbības rezultāts: Devums žurnālam › Konferences zinātniskais raksts › koleģiāli recenzēts

1 Atsauce (Scopus)

Kopsavilkums

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.

Oriģinālvaloda	Angļu
Lapas (no-līdz)	32-39
Lapu skaits	8
Žurnāls	Integrated Ferroelectrics
Sējums	123
Izdevuma numurs	1
DOIs	https://doi.org/10.1080/10584587.2011.570600
Publikācijas statuss	Publicēts - 2011
Pasākums	Annual International Conference "Functional Materials and Nanotechnologies", FM and NT-2010 - Riga, Latvija Ilgums: 16 marts 2010 → 19 marts 2010

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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",

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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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