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Proceedings Paper

Nanopatterned optical and magnetic La0.7Sr0.3MnO3 arrays: synthesis, fabrication, and properties
Author(s): Ming-Chung Wu; Chih-Min Chuang; Yu-Ching Huang; Yi-Jen Wu; Kuo-Chung Cheng; Ching-Fuh Lin; Yang-Fang Chen; Wei-Fang Su
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Paper Abstract

In the past few years, we have fabricated nanoscale La0.7Sr0.3MnO3 periodic arrays with unique optical and magnetic properties successfully. These periodic patterns were made by La0.7Sr0.3MnO3 resist that can be developed under a nontoxic and environmental friendly manner using pure water. The resist is also capable to exhibit both positive and negative resist behaviors depending on the electron beam dosage. Thus, these special characteristics are used to fabricate and tune periodic structure thin film having controlled optical reflectance properties in the wavelength of 300 nm to 800 nm with one fixed design electron beam pattern by simply changing the electron beam dosage only. Additionally, the magnetization of La0.7Sr0.3MnO3 patterns can be enhanced by post sintering the sample at 900 °C after electron beam irradiation. Therefore, our study provides a one-step, simple, and convenient alternative technique for the fabrication of tunable optical structure and nanoscale magnetic patterns, which form the building blocks for the study of optoelectronic and magnetic devices in nanoscale periodic arrays.

Paper Details

Date Published: 15 February 2010
PDF: 12 pages
Proc. SPIE 7603, Oxide-based Materials and Devices, 76031H (15 February 2010); doi: 10.1117/12.845257
Show Author Affiliations
Ming-Chung Wu, National Taiwan Univ. (Taiwan)
Chih-Min Chuang, Institute of Nuclear Energy Research (Taiwan)
Yu-Ching Huang, National Taiwan Univ. (Taiwan)
Yi-Jen Wu, National Taiwan Univ. (Taiwan)
Kuo-Chung Cheng, National Taipei Univ. of Technology (Taiwan)
Ching-Fuh Lin, National Taiwan Univ. (Taiwan)
Yang-Fang Chen, National Taiwan Univ. (Taiwan)
Wei-Fang Su, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7603:
Oxide-based Materials and Devices
Ferechteh Hosseini Teherani; David C. Look; Cole W. Litton; David J. Rogers, Editor(s)

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