Controlling magnetoelectric coupling by nanoscale phase transformation in strain engineered bismuth ferrite

Y. Y. Liu; R. K. Vasudevan; K. Pan; S. H. Xie; W. I. Liang; A. Kumar; S. Jesse; Y. C. Chen; Y. H. Chu; V. Nagarajan; S. V. Kalinin; J. Y. Li

doi:10.1039/c2nr00039c

Controlling magnetoelectric coupling by nanoscale phase transformation in strain engineered bismuth ferrite

Y. Y. Liu, R. K. Vasudevan, K. Pan, S. H. Xie, W. I. Liang, A. Kumar, S. Jesse, Y. C. Chen, Y. H. Chu, V. Nagarajan, S. V. Kalinin, J. Y. Li

Center for Nanophase Matls Sciences

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

46 Scopus citations

Abstract

The magnetoelectric coupling in multiferroic materials is promising for a wide range of applications, yet manipulating magnetic ordering by electric field proves elusive to obtain and difficult to control. In this paper, we explore the prospect of controlling magnetic ordering in misfit strained bismuth ferrite (BiFeO ₃, BFO) films, combining theoretical analysis, numerical simulations, and experimental characterizations. Electric field induced transformation from a tetragonal phase to a distorted rhombohedral one in strain engineered BFO films has been identified by thermodynamic analysis, and realized by scanning probe microscopy (SPM) experiment. By breaking the rotational symmetry of a tip-induced electric field as suggested by phase field simulation, the morphology of distorted rhombohedral variants has been delicately controlled and regulated. Such capabilities enable nanoscale control of magnetoelectric coupling in strain engineered BFO films that is difficult to achieve otherwise, as demonstrated by phase field simulations.

Original language	English
Pages (from-to)	3175-3183
Number of pages	9
Journal	Nanoscale
Volume	4
Issue number	10
DOIs	https://doi.org/10.1039/c2nr00039c
State	Published - May 21 2012

Access to Document

10.1039/c2nr00039c

Cite this

@article{21ff341e8c0e412abe924791cbbc7307,

title = "Controlling magnetoelectric coupling by nanoscale phase transformation in strain engineered bismuth ferrite",

abstract = "The magnetoelectric coupling in multiferroic materials is promising for a wide range of applications, yet manipulating magnetic ordering by electric field proves elusive to obtain and difficult to control. In this paper, we explore the prospect of controlling magnetic ordering in misfit strained bismuth ferrite (BiFeO 3, BFO) films, combining theoretical analysis, numerical simulations, and experimental characterizations. Electric field induced transformation from a tetragonal phase to a distorted rhombohedral one in strain engineered BFO films has been identified by thermodynamic analysis, and realized by scanning probe microscopy (SPM) experiment. By breaking the rotational symmetry of a tip-induced electric field as suggested by phase field simulation, the morphology of distorted rhombohedral variants has been delicately controlled and regulated. Such capabilities enable nanoscale control of magnetoelectric coupling in strain engineered BFO films that is difficult to achieve otherwise, as demonstrated by phase field simulations.",

author = "Liu, {Y. Y.} and Vasudevan, {R. K.} and K. Pan and Xie, {S. H.} and Liang, {W. I.} and A. Kumar and S. Jesse and Chen, {Y. C.} and Chu, {Y. H.} and V. Nagarajan and Kalinin, {S. V.} and Li, {J. Y.}",

year = "2012",

month = may,

day = "21",

doi = "10.1039/c2nr00039c",

language = "English",

volume = "4",

pages = "3175--3183",

journal = "Nanoscale",

issn = "2040-3364",

publisher = "Royal Society of Chemistry",

number = "10",

}

TY - JOUR

T1 - Controlling magnetoelectric coupling by nanoscale phase transformation in strain engineered bismuth ferrite

AU - Liu, Y. Y.

AU - Vasudevan, R. K.

AU - Pan, K.

AU - Xie, S. H.

AU - Liang, W. I.

AU - Kumar, A.

AU - Jesse, S.

AU - Chen, Y. C.

AU - Chu, Y. H.

AU - Nagarajan, V.

AU - Kalinin, S. V.

AU - Li, J. Y.

PY - 2012/5/21

Y1 - 2012/5/21

N2 - The magnetoelectric coupling in multiferroic materials is promising for a wide range of applications, yet manipulating magnetic ordering by electric field proves elusive to obtain and difficult to control. In this paper, we explore the prospect of controlling magnetic ordering in misfit strained bismuth ferrite (BiFeO 3, BFO) films, combining theoretical analysis, numerical simulations, and experimental characterizations. Electric field induced transformation from a tetragonal phase to a distorted rhombohedral one in strain engineered BFO films has been identified by thermodynamic analysis, and realized by scanning probe microscopy (SPM) experiment. By breaking the rotational symmetry of a tip-induced electric field as suggested by phase field simulation, the morphology of distorted rhombohedral variants has been delicately controlled and regulated. Such capabilities enable nanoscale control of magnetoelectric coupling in strain engineered BFO films that is difficult to achieve otherwise, as demonstrated by phase field simulations.

AB - The magnetoelectric coupling in multiferroic materials is promising for a wide range of applications, yet manipulating magnetic ordering by electric field proves elusive to obtain and difficult to control. In this paper, we explore the prospect of controlling magnetic ordering in misfit strained bismuth ferrite (BiFeO 3, BFO) films, combining theoretical analysis, numerical simulations, and experimental characterizations. Electric field induced transformation from a tetragonal phase to a distorted rhombohedral one in strain engineered BFO films has been identified by thermodynamic analysis, and realized by scanning probe microscopy (SPM) experiment. By breaking the rotational symmetry of a tip-induced electric field as suggested by phase field simulation, the morphology of distorted rhombohedral variants has been delicately controlled and regulated. Such capabilities enable nanoscale control of magnetoelectric coupling in strain engineered BFO films that is difficult to achieve otherwise, as demonstrated by phase field simulations.

UR - http://www.scopus.com/inward/record.url?scp=84860716907&partnerID=8YFLogxK

U2 - 10.1039/c2nr00039c

DO - 10.1039/c2nr00039c

M3 - Article

AN - SCOPUS:84860716907

SN - 2040-3364

VL - 4

SP - 3175

EP - 3183

JO - Nanoscale

JF - Nanoscale

IS - 10

ER -

Controlling magnetoelectric coupling by nanoscale phase transformation in strain engineered bismuth ferrite

Abstract

Access to Document

Other files and links

Fingerprint

Cite this