Strain dependence of transition temperatures and structural symmetry of BiFeO3 within the tetragonal-like structure

W. Siemons; G. J. MacDougall; A. A. Aczel; J. L. Zarestky; M. D. Biegalski; S. Liang; E. Dagotto; S. E. Nagler; H. M. Christen

doi:10.1063/1.4767335

Strain dependence of transition temperatures and structural symmetry of BiFeO₃ within the tetragonal-like structure

W. Siemons, G. J. MacDougall, A. A. Aczel, J. L. Zarestky, M. D. Biegalski, S. Liang, E. Dagotto, S. E. Nagler, H. M. Christen

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Abstract

The influence of strain-imposed in-plane lattice symmetry on the structural and magnetic properties of tetragonal-like BiFeO₃ is investigated by x-ray and elastic neutron scattering. We find that an increase in the in-plane distortion results in an increase of the Néel temperature from 313 ± 5 K to 324 ± 3 K for films grown on YAlO₃ and LaAlO₃, respectively. The change in magnetic ordering temperature is reproduced in three-dimensional Heisenberg Monte-Carlo simulations. These results show that strain cannot be treated as a single scalar number or simply as a direct consequence of the lattice mismatch between the film material and the substrate.

Original language	English (US)
Article number	212901
Journal	Applied Physics Letters
Volume	101
Issue number	21
DOIs	https://doi.org/10.1063/1.4767335
State	Published - Nov 19 2012
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4767335

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@article{33f7717f9e934de2941d412d59bfeb1a,

title = "Strain dependence of transition temperatures and structural symmetry of BiFeO3 within the tetragonal-like structure",

abstract = "The influence of strain-imposed in-plane lattice symmetry on the structural and magnetic properties of tetragonal-like BiFeO3 is investigated by x-ray and elastic neutron scattering. We find that an increase in the in-plane distortion results in an increase of the N{\'e}el temperature from 313 ± 5 K to 324 ± 3 K for films grown on YAlO3 and LaAlO3, respectively. The change in magnetic ordering temperature is reproduced in three-dimensional Heisenberg Monte-Carlo simulations. These results show that strain cannot be treated as a single scalar number or simply as a direct consequence of the lattice mismatch between the film material and the substrate.",

author = "W. Siemons and MacDougall, {G. J.} and Aczel, {A. A.} and Zarestky, {J. L.} and Biegalski, {M. D.} and S. Liang and E. Dagotto and Nagler, {S. E.} and Christen, {H. M.}",

note = "Funding Information: Research supported by the U.S. Department of Energy (DOE), Basic Energy Sciences (BES), Materials Sciences and Engineering Division (H.M.C., W.S., J.L.Z., E.D., S.L.) and performed in part at the High Flux Isotope Reactor (G.J.M., A.A.A., S.E.N.) and Center for Nanophase Materials Sciences (M.D.B.), both supported at ORNL by DOE-BES. ",

year = "2012",

month = nov,

day = "19",

doi = "10.1063/1.4767335",

language = "English (US)",

volume = "101",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

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T1 - Strain dependence of transition temperatures and structural symmetry of BiFeO3 within the tetragonal-like structure

AU - Siemons, W.

AU - MacDougall, G. J.

AU - Aczel, A. A.

AU - Zarestky, J. L.

AU - Biegalski, M. D.

AU - Liang, S.

AU - Dagotto, E.

AU - Nagler, S. E.

AU - Christen, H. M.

N1 - Funding Information: Research supported by the U.S. Department of Energy (DOE), Basic Energy Sciences (BES), Materials Sciences and Engineering Division (H.M.C., W.S., J.L.Z., E.D., S.L.) and performed in part at the High Flux Isotope Reactor (G.J.M., A.A.A., S.E.N.) and Center for Nanophase Materials Sciences (M.D.B.), both supported at ORNL by DOE-BES.

PY - 2012/11/19

Y1 - 2012/11/19

N2 - The influence of strain-imposed in-plane lattice symmetry on the structural and magnetic properties of tetragonal-like BiFeO3 is investigated by x-ray and elastic neutron scattering. We find that an increase in the in-plane distortion results in an increase of the Néel temperature from 313 ± 5 K to 324 ± 3 K for films grown on YAlO3 and LaAlO3, respectively. The change in magnetic ordering temperature is reproduced in three-dimensional Heisenberg Monte-Carlo simulations. These results show that strain cannot be treated as a single scalar number or simply as a direct consequence of the lattice mismatch between the film material and the substrate.

AB - The influence of strain-imposed in-plane lattice symmetry on the structural and magnetic properties of tetragonal-like BiFeO3 is investigated by x-ray and elastic neutron scattering. We find that an increase in the in-plane distortion results in an increase of the Néel temperature from 313 ± 5 K to 324 ± 3 K for films grown on YAlO3 and LaAlO3, respectively. The change in magnetic ordering temperature is reproduced in three-dimensional Heisenberg Monte-Carlo simulations. These results show that strain cannot be treated as a single scalar number or simply as a direct consequence of the lattice mismatch between the film material and the substrate.

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