Nanosecond Optically Induced Phase Transformation in Compressively Strained BiFeO3 on LaAlO3

Youngjun Ahn; Anastasios Pateras; Samuel D. Marks; Han Xu; Tao Zhou; Zhenlin Luo; Zuhuang Chen; Lang Chen; Xiaoyi Zhang; Anthony D. DiChiara; Haidan Wen; Paul G. Evans

doi:10.1103/PhysRevLett.123.045703

Nanosecond Optically Induced Phase Transformation in Compressively Strained BiFeO3 on LaAlO3

Mesoscale and Nanoscale Physics 2019-10-10 v3

Authors: Youngjun Ahn , Anastasios Pateras , Samuel D. Marks , Han Xu , Tao Zhou , Zhenlin Luo , Zuhuang Chen , Lang Chen , Xiaoyi Zhang , Anthony D. DiChiara , Haidan Wen , Paul G. Evans

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Abstract

Above-bandgap optical illumination induces a transformation from tilted tetragonal-like (T-like) and rhombohedral-like (R-like) phases to an untilted T-like phase in compressively strained BiFeO3. Optical excitation leads to an out-of-plane lattice expansion in the T-like phase. The transformation proceeds in regions with boundaries between the T-like and tilted R-like and tilted T-like phases, consistent with the motion of a boundary. The optically induced transformation indicates that there are new optically driven routes towards nanosecond-scale control of phase transformations in ferroelectrics and multiferroics.

Keywords

phase transformation optical illumination BiFeO3 compressive strain ferroelectrics

Cite

@article{arxiv.1901.08684,
  title  = {Nanosecond Optically Induced Phase Transformation in Compressively Strained BiFeO3 on LaAlO3},
  author = {Youngjun Ahn and Anastasios Pateras and Samuel D. Marks and Han Xu and Tao Zhou and Zhenlin Luo and Zuhuang Chen and Lang Chen and Xiaoyi Zhang and Anthony D. DiChiara and Haidan Wen and Paul G. Evans},
  journal= {arXiv preprint arXiv:1901.08684},
  year   = {2019}
}

Nanosecond Optically Induced Phase Transformation in Compressively Strained BiFeO3 on LaAlO3

Abstract

Keywords

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