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Primary and secondary pyroelectric coefficients of rhombohedral and tetragonal single-domain relaxor-PbTiO3 single crystals

Journal Article


Abstract


  • The primary and secondary pyroelectric coefficients were determined for binary (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-PT) and ternary Pb(In1/2Nb1/2)O3- Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PIN-PMN-PT) relaxor-PT single crystals. The secondary pyroelectric coefficients were calculated from the thermodynamic inter-relationship between the piezoelectric, elastic, and thermal expansion coefficients. Poling along [111] and [001] directions resulted in single-domain state of "1R" and "1T" and a macroscopic symmetry of 3m and 4mm for rhombohedral (x = 0.28) and tetragonal (x = 0.42) crystals, respectively, enabling relatively large values of pyroelectric coefficients p ≥ 5.7 × 10-4 C/m2 K. The calculated results show that the secondary pyroelectric coefficients are in the range of (-0.62 ∼ -1.06) × 10-4 C/m2 K for rhombohedral crystals and (0.70 ∼ 1.14) × 10-4 C/m2 K for tetragonal crystals, significantly lower than that of primary pyroelectric coefficients, which is important for thermal directional and imaging applications. In contrast, high d15 piezoelectric coefficients (>2000 pC/N), together with zero pyroelectric coefficients in thickness shear crystals, also makes them promising candidates for piezoelectric sensors where thermal noise is undesirable. © 2013 AIP Publishing LLC.

UOW Authors


  •   Tang, Yanxue (external author)
  •   Zhang, Shujun
  •   Shen, Zongyang (external author)
  •   Jiang, Wenhua (external author)
  •   Luo, Jun (external author)
  •   Sahul, Raffi (external author)
  •   Shrout, Thomas R. (external author)

Publication Date


  • 2013

Citation


  • Tang, Y., Zhang, S., Shen, Z., Jiang, W., Luo, J., Sahul, R. & Shrout, T. R. (2013). Primary and secondary pyroelectric coefficients of rhombohedral and tetragonal single-domain relaxor-PbTiO3 single crystals. Journal of Applied Physics, 114 (8), 084105-1-084105-5.

Scopus Eid


  • 2-s2.0-84883874646

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1931

Has Global Citation Frequency


Start Page


  • 084105-1

End Page


  • 084105-5

Volume


  • 114

Issue


  • 8

Place Of Publication


  • United States

Abstract


  • The primary and secondary pyroelectric coefficients were determined for binary (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-PT) and ternary Pb(In1/2Nb1/2)O3- Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PIN-PMN-PT) relaxor-PT single crystals. The secondary pyroelectric coefficients were calculated from the thermodynamic inter-relationship between the piezoelectric, elastic, and thermal expansion coefficients. Poling along [111] and [001] directions resulted in single-domain state of "1R" and "1T" and a macroscopic symmetry of 3m and 4mm for rhombohedral (x = 0.28) and tetragonal (x = 0.42) crystals, respectively, enabling relatively large values of pyroelectric coefficients p ≥ 5.7 × 10-4 C/m2 K. The calculated results show that the secondary pyroelectric coefficients are in the range of (-0.62 ∼ -1.06) × 10-4 C/m2 K for rhombohedral crystals and (0.70 ∼ 1.14) × 10-4 C/m2 K for tetragonal crystals, significantly lower than that of primary pyroelectric coefficients, which is important for thermal directional and imaging applications. In contrast, high d15 piezoelectric coefficients (>2000 pC/N), together with zero pyroelectric coefficients in thickness shear crystals, also makes them promising candidates for piezoelectric sensors where thermal noise is undesirable. © 2013 AIP Publishing LLC.

UOW Authors


  •   Tang, Yanxue (external author)
  •   Zhang, Shujun
  •   Shen, Zongyang (external author)
  •   Jiang, Wenhua (external author)
  •   Luo, Jun (external author)
  •   Sahul, Raffi (external author)
  •   Shrout, Thomas R. (external author)

Publication Date


  • 2013

Citation


  • Tang, Y., Zhang, S., Shen, Z., Jiang, W., Luo, J., Sahul, R. & Shrout, T. R. (2013). Primary and secondary pyroelectric coefficients of rhombohedral and tetragonal single-domain relaxor-PbTiO3 single crystals. Journal of Applied Physics, 114 (8), 084105-1-084105-5.

Scopus Eid


  • 2-s2.0-84883874646

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1931

Has Global Citation Frequency


Start Page


  • 084105-1

End Page


  • 084105-5

Volume


  • 114

Issue


  • 8

Place Of Publication


  • United States