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Nanopatterned optical and magnetic La0.6Ca0.4MnO3 arrays: Synthesis, fabrication, and properties

Published online by Cambridge University Press:  31 January 2011

Ming-Chung Wu ,
Chih-Min Chuang ,
Jhih-Fong Lin ,
Yu-Ching Huang ,
Yang-Fang Chen  and
Wei-Fang Su
Yu-Ching Huang
Affiliation:
Department of Materials Science and Engineering, National Taiwan University, Taipei 106-17, Taiwan
Yang-Fang Chen
Affiliation:
Department of Physics, National Taiwan University, Taipei 106-17, Taiwan
Wei-Fang Su*
Affiliation:
Department of Materials Science and Engineering, National Taiwan University, Taipei 106-17, Taiwan
*
a) Address all correspondence to this author. e-mail: [email protected]
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Abstract

We have fabricated La0.6Ca0.4MnO3 periodic arrays exhibiting tunable optical properties and magnetic properties using nontoxic and environmentally friendly electron beam resist made from La0.6Ca0.4MnO3 sol-gel precursor. We studied their unique optical properties by using the spectral microreflectometer and their magnetic properties using the superconducting quantum interference device and magnetic force microscopy. Additionally, the resist has the ability to demonstrate both positive and negative resist behaviors depending on the electron beam dosage. With these special characteristics, we can fabricate periodic structure on a thin film possessing controlled optical reflectance properties with one fixed design electron beam pattern without changing the structural parameters but changing the electron beam dosage only. Our approach provides an uncomplicated route for the fabrication of nanometer scale magnetic patterns, which serve as the building blocks in the search for novel properties of periodic magnetic arrays.

Keywords

Magnetic propertiesMicrostructureOptical properties
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 2 , February 2009 , pp. 394 - 403
Copyright
Copyright © Materials Research Society 2009

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