Tunable multiferroic properties in nanocomposite PbTiO 3 - CoFe 2O 4 epitaxial thin films

M. Murakami; K. S. Chang; M. A. Aronova; C. L. Lin; Ming H. Yu; J. Hattrick Simpers; M. Wuttig; I. Takeuchi; C. Gao; B. Hu; S. E. Lofland; L. A. Knauss; L. A. Bendersky

doi:10.1063/1.2041825

Tunable multiferroic properties in nanocomposite PbTiO ₃ - CoFe ₂O ₄ epitaxial thin films

M. Murakami, K. S. Chang, M. A. Aronova, C. L. Lin, Ming H. Yu, J. Hattrick Simpers, M. Wuttig, I. Takeuchi, C. Gao, B. Hu, S. E. Lofland, L. A. Knauss, L. A. Bendersky

Physics

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Abstract

We report on the synthesis of PbTiO3 - CoFe2 O4 multiferroic nanocomposites and continuous tuning of their ferroelectric and magnetic properties as a function of the average composition on thin-film composition spreads. The highest dielectric constant and nonlinear dielectric signal was observed at (PbTiO3) 85 - (CoFe2 O4) 15, where robust magnetism was also observed. Transmission electron microscopy revealed a pancake-shaped epitaxial nanostructure of PbTiO3 on the order of 30 nm embedded in the matrix of CoFe2 O4 at this composition. Composition dependent ferroics properties observed here indicate that there is considerable interdiffusion of cations into each other.

Original language	English (US)
Article number	112901
Journal	Applied Physics Letters
Volume	87
Issue number	11
DOIs	https://doi.org/10.1063/1.2041825
State	Published - Sep 12 2005

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2041825

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@article{8226d758f6d143298d3b6f181b9b0a3c,

title = "Tunable multiferroic properties in nanocomposite PbTiO 3 - CoFe 2O 4 epitaxial thin films",

abstract = "We report on the synthesis of PbTiO3 - CoFe2 O4 multiferroic nanocomposites and continuous tuning of their ferroelectric and magnetic properties as a function of the average composition on thin-film composition spreads. The highest dielectric constant and nonlinear dielectric signal was observed at (PbTiO3) 85 - (CoFe2 O4) 15, where robust magnetism was also observed. Transmission electron microscopy revealed a pancake-shaped epitaxial nanostructure of PbTiO3 on the order of 30 nm embedded in the matrix of CoFe2 O4 at this composition. Composition dependent ferroics properties observed here indicate that there is considerable interdiffusion of cations into each other.",

author = "M. Murakami and Chang, {K. S.} and Aronova, {M. A.} and Lin, {C. L.} and Yu, {Ming H.} and Simpers, {J. Hattrick} and M. Wuttig and I. Takeuchi and C. Gao and B. Hu and Lofland, {S. E.} and Knauss, {L. A.} and Bendersky, {L. A.}",

note = "Funding Information: This work was supported by ONR N000140110761, ONR N000140410085, NSF DMR 0094265 (CAREER), NSF DMR 0231291, and MRSEC DMR-00-80008.",

year = "2005",

month = sep,

day = "12",

doi = "10.1063/1.2041825",

language = "English (US)",

volume = "87",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "11",

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TY - JOUR

T1 - Tunable multiferroic properties in nanocomposite PbTiO 3 - CoFe 2O 4 epitaxial thin films

AU - Murakami, M.

AU - Chang, K. S.

AU - Aronova, M. A.

AU - Lin, C. L.

AU - Yu, Ming H.

AU - Simpers, J. Hattrick

AU - Wuttig, M.

AU - Takeuchi, I.

AU - Gao, C.

AU - Hu, B.

AU - Lofland, S. E.

AU - Knauss, L. A.

AU - Bendersky, L. A.

N1 - Funding Information: This work was supported by ONR N000140110761, ONR N000140410085, NSF DMR 0094265 (CAREER), NSF DMR 0231291, and MRSEC DMR-00-80008.

PY - 2005/9/12

Y1 - 2005/9/12

N2 - We report on the synthesis of PbTiO3 - CoFe2 O4 multiferroic nanocomposites and continuous tuning of their ferroelectric and magnetic properties as a function of the average composition on thin-film composition spreads. The highest dielectric constant and nonlinear dielectric signal was observed at (PbTiO3) 85 - (CoFe2 O4) 15, where robust magnetism was also observed. Transmission electron microscopy revealed a pancake-shaped epitaxial nanostructure of PbTiO3 on the order of 30 nm embedded in the matrix of CoFe2 O4 at this composition. Composition dependent ferroics properties observed here indicate that there is considerable interdiffusion of cations into each other.

AB - We report on the synthesis of PbTiO3 - CoFe2 O4 multiferroic nanocomposites and continuous tuning of their ferroelectric and magnetic properties as a function of the average composition on thin-film composition spreads. The highest dielectric constant and nonlinear dielectric signal was observed at (PbTiO3) 85 - (CoFe2 O4) 15, where robust magnetism was also observed. Transmission electron microscopy revealed a pancake-shaped epitaxial nanostructure of PbTiO3 on the order of 30 nm embedded in the matrix of CoFe2 O4 at this composition. Composition dependent ferroics properties observed here indicate that there is considerable interdiffusion of cations into each other.

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 11

M1 - 112901

ER -

Tunable multiferroic properties in nanocomposite PbTiO ₃ - CoFe ₂O ₄ epitaxial thin films

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