Optical bandgap and phase transition in relaxor ferroelectric Pb(Mg 1/3Nb2/3)O3-xPbTiO3 single crystals: An inherent relationship

X. L. Zhang; Z. G. Hu; G. S. Xu; J. J. Zhu; Y. W. Li; Z. Q. Zhu; J. H. Chu

doi:10.1063/1.4816965

Optical bandgap and phase transition in relaxor ferroelectric Pb(Mg _1/3Nb_2/3)O₃-xPbTiO₃ single crystals: An inherent relationship

X. L. Zhang
, Z. G. Hu^*
, G. S. Xu
, J. J. Zhu
, Y. W. Li
, Z. Q. Zhu
, J. H. Chu

^*Corresponding author for this work

School of Physics and Electronic Science

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

14 Scopus citations

Abstract

We report band to band transition behaviors of relaxor ferroelectric Pb(Mg_1/3Nb_2/3)O₃-xPbTiO₃ (PMN-xPT) single crystals derived from temperature-dependent spectral transmittance. A typical bandgap formula with the temperature and composition (8 K ≤ T exp ≤ 453 K, 0.1 ≤ x ≤ 0.4) has been presented. Moreover, the phase diagram of PMN-xPT crystals can be well proposed, which is based on the bandgap variations and can be explained by electronic structure evolution. It reveals an intrinsic relationship between fundamental bandgap and phase transition of PMN-xPT single crystals, which pioneers an effective methodology to explore the phase transition of ferroelectric oxides.

Original language	English
Article number	051902
Journal	Applied Physics Letters
Volume	103
Issue number	5
DOIs	https://doi.org/10.1063/1.4816965
State	Published - 29 Jul 2013

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title = "Optical bandgap and phase transition in relaxor ferroelectric Pb(Mg 1/3Nb2/3)O3-xPbTiO3 single crystals: An inherent relationship",

abstract = "We report band to band transition behaviors of relaxor ferroelectric Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-xPT) single crystals derived from temperature-dependent spectral transmittance. A typical bandgap formula with the temperature and composition (8 K ≤ T exp ≤ 453 K, 0.1 ≤ x ≤ 0.4) has been presented. Moreover, the phase diagram of PMN-xPT crystals can be well proposed, which is based on the bandgap variations and can be explained by electronic structure evolution. It reveals an intrinsic relationship between fundamental bandgap and phase transition of PMN-xPT single crystals, which pioneers an effective methodology to explore the phase transition of ferroelectric oxides.",

author = "Zhang, \{X. L.\} and Hu, \{Z. G.\} and Xu, \{G. S.\} and Zhu, \{J. J.\} and Li, \{Y. W.\} and Zhu, \{Z. Q.\} and Chu, \{J. H.\}",

year = "2013",

month = jul,

day = "29",

doi = "10.1063/1.4816965",

language = "英语",

volume = "103",

journal = "Applied Physics Letters",

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TY - JOUR

T1 - Optical bandgap and phase transition in relaxor ferroelectric Pb(Mg 1/3Nb2/3)O3-xPbTiO3 single crystals

T2 - An inherent relationship

AU - Zhang, X. L.

AU - Hu, Z. G.

AU - Xu, G. S.

AU - Zhu, J. J.

AU - Li, Y. W.

AU - Zhu, Z. Q.

AU - Chu, J. H.

PY - 2013/7/29

Y1 - 2013/7/29

N2 - We report band to band transition behaviors of relaxor ferroelectric Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-xPT) single crystals derived from temperature-dependent spectral transmittance. A typical bandgap formula with the temperature and composition (8 K ≤ T exp ≤ 453 K, 0.1 ≤ x ≤ 0.4) has been presented. Moreover, the phase diagram of PMN-xPT crystals can be well proposed, which is based on the bandgap variations and can be explained by electronic structure evolution. It reveals an intrinsic relationship between fundamental bandgap and phase transition of PMN-xPT single crystals, which pioneers an effective methodology to explore the phase transition of ferroelectric oxides.

AB - We report band to band transition behaviors of relaxor ferroelectric Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-xPT) single crystals derived from temperature-dependent spectral transmittance. A typical bandgap formula with the temperature and composition (8 K ≤ T exp ≤ 453 K, 0.1 ≤ x ≤ 0.4) has been presented. Moreover, the phase diagram of PMN-xPT crystals can be well proposed, which is based on the bandgap variations and can be explained by electronic structure evolution. It reveals an intrinsic relationship between fundamental bandgap and phase transition of PMN-xPT single crystals, which pioneers an effective methodology to explore the phase transition of ferroelectric oxides.

UR - https://www.scopus.com/pages/publications/84882339010

U2 - 10.1063/1.4816965

DO - 10.1063/1.4816965

M3 - 文章

AN - SCOPUS:84882339010

SN - 0003-6951

VL - 103

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 5

M1 - 051902

ER -

Optical bandgap and phase transition in relaxor ferroelectric Pb(Mg _1/3Nb_2/3)O₃-xPbTiO₃ single crystals: An inherent relationship

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