Temperature dependent near infrared ultraviolet range dielectric functions of nanocrystalline (Na0.5Bi0.5)1- xCex(Ti0.99Fe0.01)O3 films

S. Zhang; J. Z. Zhang; M. J. Han; Y. W. Li; Z. G. Hu; J. H. Chu

doi:10.1063/1.4863417

Temperature dependent near infrared ultraviolet range dielectric functions of nanocrystalline (Na_0.5Bi_0.5)_1- _xCe_x(Ti_0.99Fe_0.01)O₃ films

S. Zhang
, J. Z. Zhang
, M. J. Han
, Y. W. Li
, Z. G. Hu^*
, J. H. Chu

^*此作品的通讯作者

物理学院

East China Normal University

科研成果: 期刊稿件 › 文章 › 同行评审

10 引用（Scopus）

摘要

Optical properties and phase transition of Ce-modified (Na _0.5Bi_0.5)(Ti_0.99Fe_0.01)O ₃ nanocrystalline films have been investigated by spectroscopic ellipsometry from -70 to 500 C. Temperature dependent dielectric functions in the photon energy range of 0.6-6.4 eV can be derived by the Tauc-Lorentz model. It was found that the features in dielectric function (ε) showed an abrupt variation near 200 and 340 C, respectively. The phenomena can be explained by the appearance and/or reversal of polarization. It indicates that ferroelectric (rhombohedral) to paraelectric (tetragonal) phase transition is related to electronic band variation, which is observed by this technique.

源语言	英语
期刊论文编号	041106
期刊	Applied Physics Letters
卷	104
期	4
DOI	https://doi.org/10.1063/1.4863417
出版状态	已出版 - 27 1月 2014

访问文件

10.1063/1.4863417

其它文件与链接

链接到 Scopus 的出版物

引用此

@article{2c58c2a2b59a40b28618abc2da27281a,

title = "Temperature dependent near infrared ultraviolet range dielectric functions of nanocrystalline (Na0.5Bi0.5)1- xCex(Ti0.99Fe0.01)O3 films",

abstract = "Optical properties and phase transition of Ce-modified (Na 0.5Bi0.5)(Ti0.99Fe0.01)O 3 nanocrystalline films have been investigated by spectroscopic ellipsometry from -70 to 500 C. Temperature dependent dielectric functions in the photon energy range of 0.6-6.4 eV can be derived by the Tauc-Lorentz model. It was found that the features in dielectric function (ε) showed an abrupt variation near 200 and 340 C, respectively. The phenomena can be explained by the appearance and/or reversal of polarization. It indicates that ferroelectric (rhombohedral) to paraelectric (tetragonal) phase transition is related to electronic band variation, which is observed by this technique.",

author = "S. Zhang and Zhang, \{J. Z.\} and Han, \{M. J.\} and Li, \{Y. W.\} and Hu, \{Z. G.\} and Chu, \{J. H.\}",

year = "2014",

month = jan,

day = "27",

doi = "10.1063/1.4863417",

language = "英语",

volume = "104",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "4",

}

TY - JOUR

T1 - Temperature dependent near infrared ultraviolet range dielectric functions of nanocrystalline (Na0.5Bi0.5)1- xCex(Ti0.99Fe0.01)O3 films

AU - Zhang, S.

AU - Zhang, J. Z.

AU - Han, M. J.

AU - Li, Y. W.

AU - Hu, Z. G.

AU - Chu, J. H.

PY - 2014/1/27

Y1 - 2014/1/27

N2 - Optical properties and phase transition of Ce-modified (Na 0.5Bi0.5)(Ti0.99Fe0.01)O 3 nanocrystalline films have been investigated by spectroscopic ellipsometry from -70 to 500 C. Temperature dependent dielectric functions in the photon energy range of 0.6-6.4 eV can be derived by the Tauc-Lorentz model. It was found that the features in dielectric function (ε) showed an abrupt variation near 200 and 340 C, respectively. The phenomena can be explained by the appearance and/or reversal of polarization. It indicates that ferroelectric (rhombohedral) to paraelectric (tetragonal) phase transition is related to electronic band variation, which is observed by this technique.

AB - Optical properties and phase transition of Ce-modified (Na 0.5Bi0.5)(Ti0.99Fe0.01)O 3 nanocrystalline films have been investigated by spectroscopic ellipsometry from -70 to 500 C. Temperature dependent dielectric functions in the photon energy range of 0.6-6.4 eV can be derived by the Tauc-Lorentz model. It was found that the features in dielectric function (ε) showed an abrupt variation near 200 and 340 C, respectively. The phenomena can be explained by the appearance and/or reversal of polarization. It indicates that ferroelectric (rhombohedral) to paraelectric (tetragonal) phase transition is related to electronic band variation, which is observed by this technique.

UR - https://www.scopus.com/pages/publications/84893283858

U2 - 10.1063/1.4863417

DO - 10.1063/1.4863417

M3 - 文章

AN - SCOPUS:84893283858

SN - 0003-6951

VL - 104

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 4

M1 - 041106

ER -

Temperature dependent near infrared ultraviolet range dielectric functions of nanocrystalline (Na0.5Bi0.5)1- xCex(Ti0.99Fe0.01)O3 films

摘要

访问文件

其它文件与链接

学术指纹

引用此

Temperature dependent near infrared ultraviolet range dielectric functions of nanocrystalline (Na_0.5Bi_0.5)_1- _xCe_x(Ti_0.99Fe_0.01)O₃ films