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Structure of Self-Assembled Fe and FePt Nanoparticle Arrays

Published online by Cambridge University Press:  17 March 2011

S. Yamamuro ,
D. Farrell ,
K. D. Humfeld  and
S. A. Majetich
S. Yamamuro
Affiliation:
Dept. of Physics, Carnegie Mellon UniversityPittsburgh, PA 15213, U.S.A
D. Farrell
Affiliation:
Dept. of Physics, Carnegie Mellon UniversityPittsburgh, PA 15213, U.S.A
K. D. Humfeld
Affiliation:
Dept. of Physics, Carnegie Mellon UniversityPittsburgh, PA 15213, U.S.A
S. A. Majetich
Affiliation:
Dept. of Physics, Carnegie Mellon UniversityPittsburgh, PA 15213, U.S.A
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Abstract

Arrays were self-assembled by evaporating suspensions of 4 nm FePt or 8 nm Fe nanoparticles. The monolayers had a hexagonal close packed (hcp) structure, but the multilayer structure varied. To identify the multilayer structures, transmission electron microscopy (TEM) images were compared with phase contrast image simulations. The results showed that Fe could be grown as both hcp and face-centered cubic (fcc), or fcc-like, structures. The results of image analysis of the FePt arrays were consistent with fcc structures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 636: Symposium D – Nonlithographic and Lithographic Methods of Nanofabrication-From Ultralarge Scale , 2000 , D10.8.1
Copyright
Copyright © Materials Research Society 2001

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