Large nonlinear optical coefficients in pseudo-tetragonal BiFeO3 thin films

Ryan C. Haislmaier; Nikolas J. Podraza; Sava Denev; Alex Melville; Darrell G. Schlom; Venkatraman Gopalan

doi:10.1063/1.4812978

Large nonlinear optical coefficients in pseudo-tetragonal BiFeO₃ thin films

Ryan C. Haislmaier, Nikolas J. Podraza, Sava Denev, Alex Melville, Darrell G. Schlom, Venkatraman Gopalan

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Abstract

Biaxial strain induces a phase transition from a pseudo-rhombohedral (R) to pseudo-tetragonal (T) phase in BiFeO₃ (BFO) thin films. Using optical second harmonic generation, we measure the nonlinear optical d _ij coefficients at a fundamental wavelength of 1550 nm for R and T-BFO thin films. A large increase of the d_ij magnitudes is observed for T-BFO in comparison to R-BFO. The d_ij magnitudes for T-BFO were measured to be: | d₃₃| = 18.1 ± 2.4, |d₃₁| = 60.8 ± 8.1, and |d₁₅| = 47.0 ± 4.2, and for R-BFO: | d ₃₃| = 15.1 ± 2.1, |d₃₁| = 8.5 ± 1.2, |d ₁₅| = 0.9 ± 0.1, and |d₂₂| = 18.7 ± 2.6 (pm / V). The strain-enhanced nonlinear optical properties of T-BFO thin films make them potentially useful for optical applications.

Original language	English (US)
Article number	031906
Journal	Applied Physics Letters
Volume	103
Issue number	3
DOIs	https://doi.org/10.1063/1.4812978
State	Published - Jul 15 2013

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.4812978

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@article{b66778d61bd841fca10dec93bf6903be,

title = "Large nonlinear optical coefficients in pseudo-tetragonal BiFeO3 thin films",

abstract = "Biaxial strain induces a phase transition from a pseudo-rhombohedral (R) to pseudo-tetragonal (T) phase in BiFeO3 (BFO) thin films. Using optical second harmonic generation, we measure the nonlinear optical d ij coefficients at a fundamental wavelength of 1550 nm for R and T-BFO thin films. A large increase of the dij magnitudes is observed for T-BFO in comparison to R-BFO. The dij magnitudes for T-BFO were measured to be: | d33| = 18.1 ± 2.4, |d31| = 60.8 ± 8.1, and |d15| = 47.0 ± 4.2, and for R-BFO: | d 33| = 15.1 ± 2.1, |d31| = 8.5 ± 1.2, |d 15| = 0.9 ± 0.1, and |d22| = 18.7 ± 2.6 (pm / V). The strain-enhanced nonlinear optical properties of T-BFO thin films make them potentially useful for optical applications.",

author = "Haislmaier, {Ryan C.} and Podraza, {Nikolas J.} and Sava Denev and Alex Melville and Schlom, {Darrell G.} and Venkatraman Gopalan",

note = "Funding Information: The authors acknowledge financial support from the National Science Foundation through the MRSEC program Grant Nos. DMR-1210588, DMR-0908718, and DMR-0820404. The work at Cornell University was supported by ARO through Agreement No. W911NF-08-2-0032.",

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doi = "10.1063/1.4812978",

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AU - Haislmaier, Ryan C.

AU - Podraza, Nikolas J.

AU - Denev, Sava

AU - Melville, Alex

AU - Schlom, Darrell G.

AU - Gopalan, Venkatraman

N1 - Funding Information: The authors acknowledge financial support from the National Science Foundation through the MRSEC program Grant Nos. DMR-1210588, DMR-0908718, and DMR-0820404. The work at Cornell University was supported by ARO through Agreement No. W911NF-08-2-0032.

PY - 2013/7/15

Y1 - 2013/7/15

N2 - Biaxial strain induces a phase transition from a pseudo-rhombohedral (R) to pseudo-tetragonal (T) phase in BiFeO3 (BFO) thin films. Using optical second harmonic generation, we measure the nonlinear optical d ij coefficients at a fundamental wavelength of 1550 nm for R and T-BFO thin films. A large increase of the dij magnitudes is observed for T-BFO in comparison to R-BFO. The dij magnitudes for T-BFO were measured to be: | d33| = 18.1 ± 2.4, |d31| = 60.8 ± 8.1, and |d15| = 47.0 ± 4.2, and for R-BFO: | d 33| = 15.1 ± 2.1, |d31| = 8.5 ± 1.2, |d 15| = 0.9 ± 0.1, and |d22| = 18.7 ± 2.6 (pm / V). The strain-enhanced nonlinear optical properties of T-BFO thin films make them potentially useful for optical applications.

AB - Biaxial strain induces a phase transition from a pseudo-rhombohedral (R) to pseudo-tetragonal (T) phase in BiFeO3 (BFO) thin films. Using optical second harmonic generation, we measure the nonlinear optical d ij coefficients at a fundamental wavelength of 1550 nm for R and T-BFO thin films. A large increase of the dij magnitudes is observed for T-BFO in comparison to R-BFO. The dij magnitudes for T-BFO were measured to be: | d33| = 18.1 ± 2.4, |d31| = 60.8 ± 8.1, and |d15| = 47.0 ± 4.2, and for R-BFO: | d 33| = 15.1 ± 2.1, |d31| = 8.5 ± 1.2, |d 15| = 0.9 ± 0.1, and |d22| = 18.7 ± 2.6 (pm / V). The strain-enhanced nonlinear optical properties of T-BFO thin films make them potentially useful for optical applications.

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Large nonlinear optical coefficients in pseudo-tetragonal BiFeO₃ thin films

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