New multiferroics based on EuxSr1-xTiO3 nanotubes and nanowires

Eugene A. Eliseev; Maya D. Glinchuk; Victoria V. Khist; Chan Woo Lee; Chaitanya S. Deo; Rakesh K. Behera; Anna N. Morozovska

doi:10.1063/1.4774208

New multiferroics based on Eu_xSr_1-xTiO₃ nanotubes and nanowires

Eugene A. Eliseev
, Maya D. Glinchuk
, Victoria V. Khist
, Chan Woo Lee
, Chaitanya S. Deo
, Rakesh K. Behera
, Anna N. Morozovska

Department of Energy and Materials Engineering

NASU - Institute for Problems of Materials Science
Georgia Institute of Technology
NASU - Institute of Physics

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

27 Scopus citations

Abstract

Using Landau-Ginzburg-Devonshire theory, we have addressed the complex interplay between structural antiferrodistortive order parameter (oxygen octahedron rotations), polarization and magnetization in Eu_xSr _1-xTiO₃ nanosystems. We have calculated the phase diagrams of Eu_xSr_1-xTiO₃ bulk, nanotubes and nanowires, which include the antiferrodistortive, ferroelectric, ferromagnetic, and antiferromagnetic phases. For Eu_xSr_1-xTiO₃ nanosystems, our calculations show the presence of antiferrodistortive- ferroelectric-ferromagnetic phase or the triple phase at low temperatures (≤10 K). The polarization and magnetization values in the triple phase are calculated to be relatively high (∼50 μC/cm² and ∼0.5 MA/m). Therefore, the strong coupling between structural distortions, polarization, and magnetization suggests the Eu_xSr _1-xTiO₃ nanosystems as strong candidates for possible multiferroic applications.

Original language	English
Article number	024107
Journal	Journal of Applied Physics
Volume	113
Issue number	2
DOIs	https://doi.org/10.1063/1.4774208
State	Published - 14 Jan 2013

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title = "New multiferroics based on EuxSr1-xTiO3 nanotubes and nanowires",

abstract = "Using Landau-Ginzburg-Devonshire theory, we have addressed the complex interplay between structural antiferrodistortive order parameter (oxygen octahedron rotations), polarization and magnetization in EuxSr 1-xTiO3 nanosystems. We have calculated the phase diagrams of EuxSr1-xTiO3 bulk, nanotubes and nanowires, which include the antiferrodistortive, ferroelectric, ferromagnetic, and antiferromagnetic phases. For EuxSr1-xTiO3 nanosystems, our calculations show the presence of antiferrodistortive- ferroelectric-ferromagnetic phase or the triple phase at low temperatures (≤10 K). The polarization and magnetization values in the triple phase are calculated to be relatively high (∼50 μC/cm2 and ∼0.5 MA/m). Therefore, the strong coupling between structural distortions, polarization, and magnetization suggests the EuxSr 1-xTiO3 nanosystems as strong candidates for possible multiferroic applications.",

author = "Eliseev, \{Eugene A.\} and Glinchuk, \{Maya D.\} and Khist, \{Victoria V.\} and Lee, \{Chan Woo\} and Deo, \{Chaitanya S.\} and Behera, \{Rakesh K.\} and Morozovska, \{Anna N.\}",

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doi = "10.1063/1.4774208",

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T1 - New multiferroics based on EuxSr1-xTiO3 nanotubes and nanowires

AU - Eliseev, Eugene A.

AU - Glinchuk, Maya D.

AU - Khist, Victoria V.

AU - Lee, Chan Woo

AU - Deo, Chaitanya S.

AU - Behera, Rakesh K.

AU - Morozovska, Anna N.

PY - 2013/1/14

Y1 - 2013/1/14

N2 - Using Landau-Ginzburg-Devonshire theory, we have addressed the complex interplay between structural antiferrodistortive order parameter (oxygen octahedron rotations), polarization and magnetization in EuxSr 1-xTiO3 nanosystems. We have calculated the phase diagrams of EuxSr1-xTiO3 bulk, nanotubes and nanowires, which include the antiferrodistortive, ferroelectric, ferromagnetic, and antiferromagnetic phases. For EuxSr1-xTiO3 nanosystems, our calculations show the presence of antiferrodistortive- ferroelectric-ferromagnetic phase or the triple phase at low temperatures (≤10 K). The polarization and magnetization values in the triple phase are calculated to be relatively high (∼50 μC/cm2 and ∼0.5 MA/m). Therefore, the strong coupling between structural distortions, polarization, and magnetization suggests the EuxSr 1-xTiO3 nanosystems as strong candidates for possible multiferroic applications.

AB - Using Landau-Ginzburg-Devonshire theory, we have addressed the complex interplay between structural antiferrodistortive order parameter (oxygen octahedron rotations), polarization and magnetization in EuxSr 1-xTiO3 nanosystems. We have calculated the phase diagrams of EuxSr1-xTiO3 bulk, nanotubes and nanowires, which include the antiferrodistortive, ferroelectric, ferromagnetic, and antiferromagnetic phases. For EuxSr1-xTiO3 nanosystems, our calculations show the presence of antiferrodistortive- ferroelectric-ferromagnetic phase or the triple phase at low temperatures (≤10 K). The polarization and magnetization values in the triple phase are calculated to be relatively high (∼50 μC/cm2 and ∼0.5 MA/m). Therefore, the strong coupling between structural distortions, polarization, and magnetization suggests the EuxSr 1-xTiO3 nanosystems as strong candidates for possible multiferroic applications.

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U2 - 10.1063/1.4774208

DO - 10.1063/1.4774208

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VL - 113

JO - Journal of Applied Physics

JF - Journal of Applied Physics

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ER -

New multiferroics based on Eu_xSr_1-xTiO₃ nanotubes and nanowires

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