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

doi:10.1080/00150190601187021

Piezoelectric (Na_0.5K_0.5)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: Contribution to journal › Conference article › peer-review

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 language	English
Pages (from-to)	55-59
Number of pages	5
Journal	Ferroelectrics
Volume	347
DOIs	https://doi.org/10.1080/00150190601187021
Publication status	Published - 2007
Externally published	Yes
Event	8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8 - Tsukuba, Japan Duration: May 15 2006 → May 19 2006

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1080/00150190601187021

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

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.",

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

year = "2007",

doi = "10.1080/00150190601187021",

language = "English",

volume = "347",

pages = "55--59",

journal = "Ferroelectrics",

issn = "0015-0193",

publisher = "Taylor and Francis Ltd.",

note = "8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8 ; Conference date: 15-05-2006 Through 19-05-2006",

}

TY - JOUR

T1 - Piezoelectric (Na0.5K0.5)NbO3-SrTiO 3 ceramics in the tetragonal-orthorhombic phase boundary studied by Raman spectroscopy

AU - Kano, Jun

AU - Sasanuma, Keita

AU - Tsukada, Shinya

AU - Kojima, Seiji

AU - Wang, Ruiping

AU - Hanada, Kotaro

AU - Matsusaki, Kunio

AU - Bando, Hiroshi

PY - 2007

Y1 - 2007

N2 - 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.

AB - 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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U2 - 10.1080/00150190601187021

DO - 10.1080/00150190601187021

M3 - Conference article

AN - SCOPUS:34547363753

SN - 0015-0193

VL - 347

SP - 55

EP - 59

JO - Ferroelectrics

JF - Ferroelectrics

T2 - 8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8

Y2 - 15 May 2006 through 19 May 2006

ER -

Piezoelectric (Na_0.5K_0.5)NbO₃-SrTiO ₃ ceramics in the tetragonal-orthorhombic phase boundary studied by Raman spectroscopy

Abstract

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