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Strain modulated transient photostriction in la and Nb codoped multiferroic BiFeO3 thin films

Journal Article


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Abstract


  • The coherent longitudinal acoustic (LA) phonons in La and Nb codoped polycrystalline BiFeO3 (Bi0.8La0.2Fe 0.99Nb0.01O3 (BLFNO)) films are photo-induced and detected by the ultrafast reflectance spectroscopy. The generation mechanism of LA phonons is strongly connected with the ferroelectric polarization and is attributed to the transient photostriction effect, which is a combination of the optical rectification effect and the electrostriction effect. The strain modulation of sound velocity and out-of-plane elastic properties are demonstrated in BLFNO film on SrTiO3, which gives the insight on the dynamical coupling between electrical polarization and lattice deformation. Our findings are desired for the design of BiFeO3-based photo-driven remote control micro/nano devices. © 2012 American Institute of Physics.

UOW Authors


  •   Jin, Zuanming (external author)
  •   Xu, Yue (external author)
  •   Zhang, Zhengbing (external author)
  •   Lin, Xian (external author)
  •   Ma, Guohong (external author)
  •   Cheng, Zhenxiang
  •   Wang, Xiaolin

Publication Date


  • 2012

Citation


  • Jin, Z., Xu, Y., Zhang, Z., Lin, X., Ma, G., Cheng, Z. & Wang, X. (2012). Strain modulated transient photostriction in la and Nb codoped multiferroic BiFeO3 thin films. Applied Physics Letters, 101 (24), 242902-1-242902-5.

Scopus Eid


  • 2-s2.0-84871269273

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1573&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/573

Has Global Citation Frequency


Start Page


  • 242902-1

End Page


  • 242902-5

Volume


  • 101

Issue


  • 24

Place Of Publication


  • United States

Abstract


  • The coherent longitudinal acoustic (LA) phonons in La and Nb codoped polycrystalline BiFeO3 (Bi0.8La0.2Fe 0.99Nb0.01O3 (BLFNO)) films are photo-induced and detected by the ultrafast reflectance spectroscopy. The generation mechanism of LA phonons is strongly connected with the ferroelectric polarization and is attributed to the transient photostriction effect, which is a combination of the optical rectification effect and the electrostriction effect. The strain modulation of sound velocity and out-of-plane elastic properties are demonstrated in BLFNO film on SrTiO3, which gives the insight on the dynamical coupling between electrical polarization and lattice deformation. Our findings are desired for the design of BiFeO3-based photo-driven remote control micro/nano devices. © 2012 American Institute of Physics.

UOW Authors


  •   Jin, Zuanming (external author)
  •   Xu, Yue (external author)
  •   Zhang, Zhengbing (external author)
  •   Lin, Xian (external author)
  •   Ma, Guohong (external author)
  •   Cheng, Zhenxiang
  •   Wang, Xiaolin

Publication Date


  • 2012

Citation


  • Jin, Z., Xu, Y., Zhang, Z., Lin, X., Ma, G., Cheng, Z. & Wang, X. (2012). Strain modulated transient photostriction in la and Nb codoped multiferroic BiFeO3 thin films. Applied Physics Letters, 101 (24), 242902-1-242902-5.

Scopus Eid


  • 2-s2.0-84871269273

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1573&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/573

Has Global Citation Frequency


Start Page


  • 242902-1

End Page


  • 242902-5

Volume


  • 101

Issue


  • 24

Place Of Publication


  • United States