Infrared optical properties of PbTiO3 ferroelectric thin films

Zhiming Huang; Xiangjiang Meng; Zhanhong Zhang; Junhao Chu

doi:10.1088/0022-3727/35/3/313

Infrared optical properties of PbTiO₃ ferroelectric thin films

Zhiming Huang^*
, Xiangjiang Meng
, Zhanhong Zhang
, Junhao Chu

^*Corresponding author for this work

CAS - Shanghai Institute of Technical Physics

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

12 Scopus citations

Abstract

Infrared optical properties of lead titanate (PbTiO₃) thin films grown on Pt/Ti/SiO₂/Si substrates are studied by infrared spectroscopic ellipsometry (IRSE) in the spectral range of 2.5-12.6 μm. The refractive index and extinction coefficient of PbTiO₃ thin films are determined by fitting the IRSE data using a derived classical dielectric function formula. The refractive index decreases; on the contrary, the extinction coefficient increases as the wavelength increases. The absorption coefficient is greater than 1000 cm^-1 for wavelengths over 11.7 μm, but very small and less than 100 cm^-1 for wavelengths under 4.8 μm. The effective static ionic charge has also been derived, which is smaller than it would be in a purely ionic material for PbTiO₃ thin films.

Original language	English
Pages (from-to)	246-248
Number of pages	3
Journal	Journal of Physics D: Applied Physics
Volume	35
Issue number	3
DOIs	https://doi.org/10.1088/0022-3727/35/3/313
State	Published - 7 Feb 2002
Externally published	Yes

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title = "Infrared optical properties of PbTiO3 ferroelectric thin films",

abstract = "Infrared optical properties of lead titanate (PbTiO3) thin films grown on Pt/Ti/SiO2/Si substrates are studied by infrared spectroscopic ellipsometry (IRSE) in the spectral range of 2.5-12.6 μm. The refractive index and extinction coefficient of PbTiO3 thin films are determined by fitting the IRSE data using a derived classical dielectric function formula. The refractive index decreases; on the contrary, the extinction coefficient increases as the wavelength increases. The absorption coefficient is greater than 1000 cm-1 for wavelengths over 11.7 μm, but very small and less than 100 cm-1 for wavelengths under 4.8 μm. The effective static ionic charge has also been derived, which is smaller than it would be in a purely ionic material for PbTiO3 thin films.",

author = "Zhiming Huang and Xiangjiang Meng and Zhanhong Zhang and Junhao Chu",

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T1 - Infrared optical properties of PbTiO3 ferroelectric thin films

AU - Huang, Zhiming

AU - Meng, Xiangjiang

AU - Zhang, Zhanhong

AU - Chu, Junhao

PY - 2002/2/7

Y1 - 2002/2/7

N2 - Infrared optical properties of lead titanate (PbTiO3) thin films grown on Pt/Ti/SiO2/Si substrates are studied by infrared spectroscopic ellipsometry (IRSE) in the spectral range of 2.5-12.6 μm. The refractive index and extinction coefficient of PbTiO3 thin films are determined by fitting the IRSE data using a derived classical dielectric function formula. The refractive index decreases; on the contrary, the extinction coefficient increases as the wavelength increases. The absorption coefficient is greater than 1000 cm-1 for wavelengths over 11.7 μm, but very small and less than 100 cm-1 for wavelengths under 4.8 μm. The effective static ionic charge has also been derived, which is smaller than it would be in a purely ionic material for PbTiO3 thin films.

AB - Infrared optical properties of lead titanate (PbTiO3) thin films grown on Pt/Ti/SiO2/Si substrates are studied by infrared spectroscopic ellipsometry (IRSE) in the spectral range of 2.5-12.6 μm. The refractive index and extinction coefficient of PbTiO3 thin films are determined by fitting the IRSE data using a derived classical dielectric function formula. The refractive index decreases; on the contrary, the extinction coefficient increases as the wavelength increases. The absorption coefficient is greater than 1000 cm-1 for wavelengths over 11.7 μm, but very small and less than 100 cm-1 for wavelengths under 4.8 μm. The effective static ionic charge has also been derived, which is smaller than it would be in a purely ionic material for PbTiO3 thin films.

UR - https://www.scopus.com/pages/publications/0037034197

U2 - 10.1088/0022-3727/35/3/313

DO - 10.1088/0022-3727/35/3/313

M3 - 文章

AN - SCOPUS:0037034197

SN - 0022-3727

VL - 35

SP - 246

EP - 248

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

IS - 3

ER -

Infrared optical properties of PbTiO₃ ferroelectric thin films

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