Publication Date

2012

Document Type

Thesis

Committee Members

Gary Farlow (Committee Member), Gregory Kozlowski (Advisor), Gregory Kozlowski (Committee Member), Ivan Medvedev (Committee Member), Douglas Petkie (Other)

Degree Name

Master of Science (MS)

Abstract

A new technique to obtain local dielectric constant of thin films was developed using atomic force microscopy system. This technique, in addition to other characterization methods such as AFM imaging and X-Ray diffraction, was used to study, as an example, dielectric constant of thin films of 0.3BiScO3 - 0.7BaTiO3. The thin films were fabricated by using pulsed laser deposition technique under following temperature of the substrate: 6500C, 7000C and 7500C. At each temperature, two different oxygen pressures were used in deposition chamber: 50 mTorr and 100 mTorr. Our goal was to find optimal growth conditions with the highest dielectric constant and compare it with their structural properties. In addition, our dielectric constant calculations were generalized to include a wider range of film thicknesses.

Page Count

63

Department or Program

Department of Physics

Year Degree Awarded

2012


Included in

Physics Commons

COinS