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Origin of morphotropic phase boundaries in ferroelectrics

Author

Listed:
  • Muhtar Ahart

    (Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington DC 20015, USA)

  • Maddury Somayazulu

    (Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington DC 20015, USA)

  • R. E. Cohen

    (Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington DC 20015, USA)

  • P. Ganesh

    (Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington DC 20015, USA)

  • Przemyslaw Dera

    (Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington DC 20015, USA)

  • Ho-kwang Mao

    (Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington DC 20015, USA)

  • Russell J. Hemley

    (Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington DC 20015, USA)

  • Yang Ren

    (Argonne National Laboratory)

  • Peter Liermann

    (HPCAT, Carnegie Institution of Washington, Advanced Photon Sources, Argonne, Illinois 60439, USA)

  • Zhigang Wu

    (The Berkeley Nanosciences and Nanoengineering Institute (BNNI), University of California at Berkeley, Berkeley, California 94720, USA)

Abstract

Piezoelectrics made simple Application of mechanical force to a piezo­electric material generates a voltage; conversely, apply a voltage and you get a force. This combination of properties has many applications, primarily in the generation of ultrasound. The largest electromechanical responses tend to occur in highly complex materials, and the desired properties tend to be maximum when associated with a 'morphotropic' phase transition — an abrupt structural change usually linked to changes in composition. Muhtar Ahart et al. show that a similar phase transition can occur in a simple, pure compound, under high pressure. The compound is the prototypical ferroelectric, lead titanate, and it produces an electro-mechanical response larger than any known. It may be possible to chemically tune these effects to ambient pressures, which would potentially reduce the costs and enhance the utility of high-performance piezoelectric materials.

Suggested Citation

  • Muhtar Ahart & Maddury Somayazulu & R. E. Cohen & P. Ganesh & Przemyslaw Dera & Ho-kwang Mao & Russell J. Hemley & Yang Ren & Peter Liermann & Zhigang Wu, 2008. "Origin of morphotropic phase boundaries in ferroelectrics," Nature, Nature, vol. 451(7178), pages 545-548, January.
    • Handle: RePEc:nat:nature:v:451:y:2008:i:7178:d:10.1038_nature06459
    DOI: 10.1038/nature06459
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    Cited by:

    1. Salazar, R. & Serrano, M. & Abdelkefi, A., 2020. "Fatigue in piezoelectric ceramic vibrational energy harvesting: A review," Applied Energy, Elsevier, vol. 270(C).
    2. Zhengqian Fu & Xuefeng Chen & Henchang Nie & Yanyu Liu & Jiawang Hong & Tengfei Hu & Ziyi Yu & Zhenqin Li & Linlin Zhang & Heliang Yao & Yuanhua Xia & Zhipeng Gao & Zheyi An & Nan Zhang & Fei Cao & He, 2022. "Atomic reconfiguration among tri-state transition at ferroelectric/antiferroelectric phase boundaries in Pb(Zr,Ti)O3," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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