Abnormal temperature dependence of interband electronic transitions in relaxor-based ferroelectric (1-x) Pb (Mg1/3Nb2/3)O 3 -xPbTiO3 (x=0.24 and 0.31) single crystals

J. J. Zhu; W. W. Li; G. S. Xu; K. Jiang; Z. G. Hu; M. Zhu; J. H. Chu

doi:10.1063/1.3560342

Abnormal temperature dependence of interband electronic transitions in relaxor-based ferroelectric (1-x) Pb (Mg_1/3Nb_2/3)O ₃ -xPbTiO₃ (x=0.24 and 0.31) single crystals

J. J. Zhu
, W. W. Li
, G. S. Xu
, K. Jiang
, Z. G. Hu
, M. Zhu
, J. H. Chu

School of Physics and Electronic Science

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

22 Scopus citations

Abstract

The transmittance spectra of (1-x) Pb (Mg_1/3Nb_2/3) O₃ -xPbTiO₃ (x=0.24 and 0.31) single crystals have been studied in the temperature range of 5.3-300 K. It was found that the direct band gap Egd is 3.150±0.016 eV, indirect band gap Egi is 2.939±0.014 eV, and the phonon energy E_p is 0.098±0.014 eV for the PMN-0.24PT crystal at 300 K. With increasing the temperature, the Egd of the PMN-0.24PT crystal decreases from 3.263±0.017 to 3.150±0.016 eV while the Egd of the PMN-0.31PT crystal increases from 3.050±0.015 to 3.101±0.016 eV. The peculiar characteristic can be ascribed to the monoclinic and rhombohedral multiphase coexistence in the PMN-0.31PT crystal.

Original language	English
Article number	091913
Journal	Applied Physics Letters
Volume	98
Issue number	9
DOIs	https://doi.org/10.1063/1.3560342
State	Published - 28 Feb 2011

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title = "Abnormal temperature dependence of interband electronic transitions in relaxor-based ferroelectric (1-x) Pb (Mg1/3Nb2/3)O 3 -xPbTiO3 (x=0.24 and 0.31) single crystals",

abstract = "The transmittance spectra of (1-x) Pb (Mg1/3Nb2/3) O3 -xPbTiO3 (x=0.24 and 0.31) single crystals have been studied in the temperature range of 5.3-300 K. It was found that the direct band gap Egd is 3.150±0.016 eV, indirect band gap Egi is 2.939±0.014 eV, and the phonon energy Ep is 0.098±0.014 eV for the PMN-0.24PT crystal at 300 K. With increasing the temperature, the Egd of the PMN-0.24PT crystal decreases from 3.263±0.017 to 3.150±0.016 eV while the Egd of the PMN-0.31PT crystal increases from 3.050±0.015 to 3.101±0.016 eV. The peculiar characteristic can be ascribed to the monoclinic and rhombohedral multiphase coexistence in the PMN-0.31PT crystal.",

author = "Zhu, \{J. J.\} and Li, \{W. W.\} and Xu, \{G. S.\} and K. Jiang and Hu, \{Z. G.\} and M. Zhu and Chu, \{J. H.\}",

year = "2011",

month = feb,

day = "28",

doi = "10.1063/1.3560342",

language = "英语",

volume = "98",

journal = "Applied Physics Letters",

issn = "0003-6951",

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TY - JOUR

T1 - Abnormal temperature dependence of interband electronic transitions in relaxor-based ferroelectric (1-x) Pb (Mg1/3Nb2/3)O 3 -xPbTiO3 (x=0.24 and 0.31) single crystals

AU - Zhu, J. J.

AU - Li, W. W.

AU - Xu, G. S.

AU - Jiang, K.

AU - Hu, Z. G.

AU - Zhu, M.

AU - Chu, J. H.

PY - 2011/2/28

Y1 - 2011/2/28

N2 - The transmittance spectra of (1-x) Pb (Mg1/3Nb2/3) O3 -xPbTiO3 (x=0.24 and 0.31) single crystals have been studied in the temperature range of 5.3-300 K. It was found that the direct band gap Egd is 3.150±0.016 eV, indirect band gap Egi is 2.939±0.014 eV, and the phonon energy Ep is 0.098±0.014 eV for the PMN-0.24PT crystal at 300 K. With increasing the temperature, the Egd of the PMN-0.24PT crystal decreases from 3.263±0.017 to 3.150±0.016 eV while the Egd of the PMN-0.31PT crystal increases from 3.050±0.015 to 3.101±0.016 eV. The peculiar characteristic can be ascribed to the monoclinic and rhombohedral multiphase coexistence in the PMN-0.31PT crystal.

AB - The transmittance spectra of (1-x) Pb (Mg1/3Nb2/3) O3 -xPbTiO3 (x=0.24 and 0.31) single crystals have been studied in the temperature range of 5.3-300 K. It was found that the direct band gap Egd is 3.150±0.016 eV, indirect band gap Egi is 2.939±0.014 eV, and the phonon energy Ep is 0.098±0.014 eV for the PMN-0.24PT crystal at 300 K. With increasing the temperature, the Egd of the PMN-0.24PT crystal decreases from 3.263±0.017 to 3.150±0.016 eV while the Egd of the PMN-0.31PT crystal increases from 3.050±0.015 to 3.101±0.016 eV. The peculiar characteristic can be ascribed to the monoclinic and rhombohedral multiphase coexistence in the PMN-0.31PT crystal.

UR - https://www.scopus.com/pages/publications/79952409729

U2 - 10.1063/1.3560342

DO - 10.1063/1.3560342

M3 - 文章

AN - SCOPUS:79952409729

SN - 0003-6951

VL - 98

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 9

M1 - 091913

ER -

Abnormal temperature dependence of interband electronic transitions in relaxor-based ferroelectric (1-x) Pb (Mg_1/3Nb_2/3)O ₃ -xPbTiO₃ (x=0.24 and 0.31) single crystals

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