Raman spectra of (K, Na)(Nb, Ta)O3single crystal

Shijing Sang; Zhongyuan Yuan; Limei Zheng; Enwei Sun; Xudong Qi; Rui Zhang; Xiaoning Jiang; Shiyang Li; Juan Du

doi:10.1016/j.jallcom.2016.12.166

Raman spectra of (K, Na)(Nb, Ta)O₃single crystal

Shijing Sang
, Zhongyuan Yuan
, Limei Zheng^*
, Enwei Sun
, Xudong Qi
, Rui Zhang
, Xiaoning Jiang
, Shiyang Li
, Juan Du

^*Corresponding author for this work

School of Instrumentation Science and Engineering

Harbin Institute of Technology
North Carolina State University
Shanghai Jiao Tong University
Liaocheng University

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

The Raman scattering spectra for lead-free piezoelectric single crystal (K,Na)(Nb,Ta)O₃(KNNT) were intensively investigated to explore its crystallographic structure. For the [011]_Coriented sample, 12 Raman peaks were identified from the room temperature Raman spectrum. The υ₃, υ₄and υ₆modes which should be Raman silent in normal perovskites were observed due to the low symmetry (Pm) of KNNT single crystal. The temperature dependent Raman spectra indicated that the orthorhombic-tetragonal phase transition happened at about 68 °C, and the Curie temperature (T_C) is about 225 °C. The merging of 2 υ₅modes at T_Cwas ascribed to the vanishing of polarization. The backscattering polarized Raman spectra of KNNT single crystals with different orientations were analyzed. The Raman modes were identified using polarized selection rules based on group theory.

Original language	English
Pages (from-to)	804-808
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	704
DOIs	https://doi.org/10.1016/j.jallcom.2016.12.166
State	Published - 2017

Keywords

Lead free
Polarization selection rules
Raman scattering
Single crystal
Sodium potassium tantalate niobate
Temperature dependence

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10.1016/j.jallcom.2016.12.166

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@article{5fa55ca43e3a4e2f9f0ccec40d8f1fe0,

title = "Raman spectra of (K, Na)(Nb, Ta)O3single crystal",

abstract = "The Raman scattering spectra for lead-free piezoelectric single crystal (K,Na)(Nb,Ta)O3(KNNT) were intensively investigated to explore its crystallographic structure. For the [011]Coriented sample, 12 Raman peaks were identified from the room temperature Raman spectrum. The υ3, υ4and υ6modes which should be Raman silent in normal perovskites were observed due to the low symmetry (Pm) of KNNT single crystal. The temperature dependent Raman spectra indicated that the orthorhombic-tetragonal phase transition happened at about 68 °C, and the Curie temperature (TC) is about 225 °C. The merging of 2 υ5modes at TCwas ascribed to the vanishing of polarization. The backscattering polarized Raman spectra of KNNT single crystals with different orientations were analyzed. The Raman modes were identified using polarized selection rules based on group theory.",

keywords = "Lead free, Polarization selection rules, Raman scattering, Single crystal, Sodium potassium tantalate niobate, Temperature dependence",

author = "Shijing Sang and Zhongyuan Yuan and Limei Zheng and Enwei Sun and Xudong Qi and Rui Zhang and Xiaoning Jiang and Shiyang Li and Juan Du",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

doi = "10.1016/j.jallcom.2016.12.166",

language = "英语",

volume = "704",

pages = "804--808",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Raman spectra of (K, Na)(Nb, Ta)O3single crystal

AU - Sang, Shijing

AU - Yuan, Zhongyuan

AU - Zheng, Limei

AU - Sun, Enwei

AU - Qi, Xudong

AU - Zhang, Rui

AU - Jiang, Xiaoning

AU - Li, Shiyang

AU - Du, Juan

PY - 2017

Y1 - 2017

N2 - The Raman scattering spectra for lead-free piezoelectric single crystal (K,Na)(Nb,Ta)O3(KNNT) were intensively investigated to explore its crystallographic structure. For the [011]Coriented sample, 12 Raman peaks were identified from the room temperature Raman spectrum. The υ3, υ4and υ6modes which should be Raman silent in normal perovskites were observed due to the low symmetry (Pm) of KNNT single crystal. The temperature dependent Raman spectra indicated that the orthorhombic-tetragonal phase transition happened at about 68 °C, and the Curie temperature (TC) is about 225 °C. The merging of 2 υ5modes at TCwas ascribed to the vanishing of polarization. The backscattering polarized Raman spectra of KNNT single crystals with different orientations were analyzed. The Raman modes were identified using polarized selection rules based on group theory.

AB - The Raman scattering spectra for lead-free piezoelectric single crystal (K,Na)(Nb,Ta)O3(KNNT) were intensively investigated to explore its crystallographic structure. For the [011]Coriented sample, 12 Raman peaks were identified from the room temperature Raman spectrum. The υ3, υ4and υ6modes which should be Raman silent in normal perovskites were observed due to the low symmetry (Pm) of KNNT single crystal. The temperature dependent Raman spectra indicated that the orthorhombic-tetragonal phase transition happened at about 68 °C, and the Curie temperature (TC) is about 225 °C. The merging of 2 υ5modes at TCwas ascribed to the vanishing of polarization. The backscattering polarized Raman spectra of KNNT single crystals with different orientations were analyzed. The Raman modes were identified using polarized selection rules based on group theory.

KW - Lead free

KW - Polarization selection rules

KW - Raman scattering

KW - Single crystal

KW - Sodium potassium tantalate niobate

KW - Temperature dependence

UR - https://www.scopus.com/pages/publications/85013849288

U2 - 10.1016/j.jallcom.2016.12.166

DO - 10.1016/j.jallcom.2016.12.166

M3 - 文章

AN - SCOPUS:85013849288

SN - 0925-8388

VL - 704

SP - 804

EP - 808

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Raman spectra of (K, Na)(Nb, Ta)O₃single crystal

Abstract

Keywords

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