Piezoelectric (Na0.5K0.5)NbO3-SrTiO 3 ceramics in the tetragonal-orthorhombic phase boundary studied by Raman spectroscopy

Jun Kano, Keita Sasanuma, Shinya Tsukada, Seiji Kojima, Ruiping Wang, Kotaro Hanada, Kunio Matsusaki, Hiroshi Bando

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Raman spectroscopy of lead-free piezoelectric (1-x)(Na0.5K0.5)NbO3-xSrTiO3 ceramics and (Na1 - yKy)NbO3 ones sintered by the Spark-Plasma-Sintering method have been performed to investigate the dynamical property in the intermediate phase of x = 0.05. From the comparison of Raman spectra between (1-x)(Na0.5K0.5)NbO3-xSrTiO3 and (Na1 - yKy)NbO3 at room temperature, the overdamped mode which became soften was found in the intermediate phase at x = 0.05. Although it is difficult to assign the mode because of using ceramics samples, this result has a possibility that the overdamped mode includes the soft mode observed in the orthorhombic phase.

Original languageEnglish
Title of host publicationFerroelectrics
Pages55-59
Number of pages5
Volume347
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8 - Tsukuba, Japan
Duration: May 15 2006May 19 2006

Other

Other8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8
CountryJapan
CityTsukuba
Period5/15/065/19/06

Fingerprint

Spark plasma sintering
Phase boundaries
Raman spectroscopy
Raman scattering
Lead
ceramics
Temperature
sparks
sintering
Raman spectra
room temperature

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Kano, J., Sasanuma, K., Tsukada, S., Kojima, S., Wang, R., Hanada, K., ... Bando, H. (2007). Piezoelectric (Na0.5K0.5)NbO3-SrTiO 3 ceramics in the tetragonal-orthorhombic phase boundary studied by Raman spectroscopy. In Ferroelectrics (Vol. 347, pp. 55-59) https://doi.org/10.1080/00150190601187021

Piezoelectric (Na0.5K0.5)NbO3-SrTiO 3 ceramics in the tetragonal-orthorhombic phase boundary studied by Raman spectroscopy. / Kano, Jun; Sasanuma, Keita; Tsukada, Shinya; Kojima, Seiji; Wang, Ruiping; Hanada, Kotaro; Matsusaki, Kunio; Bando, Hiroshi.

Ferroelectrics. Vol. 347 2007. p. 55-59.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kano, J, Sasanuma, K, Tsukada, S, Kojima, S, Wang, R, Hanada, K, Matsusaki, K & Bando, H 2007, Piezoelectric (Na0.5K0.5)NbO3-SrTiO 3 ceramics in the tetragonal-orthorhombic phase boundary studied by Raman spectroscopy. in Ferroelectrics. vol. 347, pp. 55-59, 8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8, Tsukuba, Japan, 5/15/06. https://doi.org/10.1080/00150190601187021
Kano, Jun ; Sasanuma, Keita ; Tsukada, Shinya ; Kojima, Seiji ; Wang, Ruiping ; Hanada, Kotaro ; Matsusaki, Kunio ; Bando, Hiroshi. / Piezoelectric (Na0.5K0.5)NbO3-SrTiO 3 ceramics in the tetragonal-orthorhombic phase boundary studied by Raman spectroscopy. Ferroelectrics. Vol. 347 2007. pp. 55-59
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abstract = "Raman spectroscopy of lead-free piezoelectric (1-x)(Na0.5K0.5)NbO3-xSrTiO3 ceramics and (Na1 - yKy)NbO3 ones sintered by the Spark-Plasma-Sintering method have been performed to investigate the dynamical property in the intermediate phase of x = 0.05. From the comparison of Raman spectra between (1-x)(Na0.5K0.5)NbO3-xSrTiO3 and (Na1 - yKy)NbO3 at room temperature, the overdamped mode which became soften was found in the intermediate phase at x = 0.05. Although it is difficult to assign the mode because of using ceramics samples, this result has a possibility that the overdamped mode includes the soft mode observed in the orthorhombic phase.",
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AU - Kojima, Seiji

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AU - Hanada, Kotaro

AU - Matsusaki, Kunio

AU - Bando, Hiroshi

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