Dissertation/Thesis Abstract

Morphological characteristics of iron phthalocyanine thin films and magnetic properties of quasi one-dimensional iron chains
by Silverstein, Evan Asher, M.S., California State University, Long Beach, 2010, 69; 1486464
Abstract (Summary)

Quasi one-dimensional iron chains are formed in thermally evaporated iron phthalocyanine thin films on silicon substrates. The chain length is modified by the substrate growth temperature and can be controlled within one order of magnitude. The surface morphology of organic thin films (measured to be 80-90 nm thick) is studied with atomic force microscopy. The grains appear circular at low substrate temperatures but are strongly elongated at high substrate temperatures due to the asymmetric shape of the small molecule. A height-height correlation function is applied to the images and the Hurst function is used to extract the correlation length, roughness, and scaling parameter. It was found that the grain size and correlation length are related by a proportionality factor 3.4. Positive linear correlations were found between the correlation length and substrate temperature during deposition.

Indexing (document details)
Advisor: Gredig, Thomas
School: California State University, Long Beach
School Location: United States -- California
Source: MAI 49/01M, Masters Abstracts International
Subjects: High Temperature Physics, Physics, Molecular physics
Publication Number: 1486464
ISBN: 9781124247625
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