A major area of research in surface science is thin film growth and
characterization. Of particular interest is the onset of epitaxial growth
and critical island size for metal films. Four vacuum chambers are available
for film growth. Presently growth characterization is limited to scanning
probe microscopy (one ambient STM/AFM and one UHV STM), reverse-view electron
diffraction, and measurements of electronic properties such as Hall voltages
and magnetoresistance. Related to the thin film work is the study of mechanisms
by which molecular compounds adsorb on the surface of highly reflective
metal films. Chemical compounds of particular interest are those related
to adhesion or lubrication. Techniques used for these studies are inelastic
electron tunneling spectroscopy (IETS), infrared (IR) spectroscopy, and
programmed thermal desorption (PTD) spectroscopy.
"Easily Realized Inelastic Electron Tunneling Spectrometer", Y. Wang,
R.R. Mallik, and P.N. Henriksen, Rev. Sci. Instrum. 64, 890
(1993).
"Crystallographic Structure and Defects in Epitaxial Bismuth Films Grown
on Mica", H. Wang, J. Jing, R.R. Mallik, H.T. Chu, and P.N. Henriksen,
J. Crystal Growth 130, 571 (1993).
"Onset of Crystal Growth of Bismuth on Graphite: An Atomic Force Microscopy
Study", H. Wang, J. Jing, and P.N. Henriksen, J. Vac. Sci. Technol.
A 11, 1987 (1993).
"Rearrangement of Au(111) Surface as a Result of Scanning with Scanning
Tunneling/Atomic Force Microscopes", H. Wang, J. Jing, H.T. Chu, and P.N.
Henriksen, J. Vac. Sci. Technol. B 11, 2000 (1993).
"Reflection Infrared Study of the Xe-CO Interaction on Pt(335): A New
Method for Site Assignment of Chemisorbed Species", Jiazhan Xu, P.N. Henriksen,
and John T. Yates, Jr., Langmuir, 10, 3663 (1994).
"Production and Separation of C60 and C70 as an Undergraduate Experiment",
D.S. Bradley, J.L. Massey, R.R. Mallik, and P.N. Henriksen, Amer. J.
Phys., 62, 85 (1994).
"Linear Polarization Demonstration/Puzzle", P.N. Henriksen, Physics
Teacher, 32, 425 (1994).
"Comparison of the Vibrational Spectra of Pyruvic Acid on Alumina using
Inelastic Electron Tunneling Spectroscopy (IETS) and Fourier Transform
Multiple Reflection Absorption Infrared Spectroscopy (MRAIRS)", S. Devdas,
R.R. Mallik, R. Coast, and P.N. Henriksen, Surface Science 326
327-334 (1995).
