Location: Bowdoin / Dale Syphers

Physics

Dale A. Syphers

Professor of Physics
Chair of Physics Department

Contact Information

dsyphers@bowdoin.edu
207-725-3606
Physics And Astronomy

Searles Science Building - 321


Teaching this semester

PHYS 1093. Introduction to Physical Reasoning

Dale Syphers
Climate science. Quantum Physics. Bioengineering. Rocket science. Who can understand it? Anyone with high school mathematics (geometry and algebra) can start. Getting started in physics requires an ability to mathematically describe real world objects and experiences. Prepares students for additional work in physical science and engineering by focused practice in quantitative description, interpretation, and calculation. Includes hands-on measurements, some introductory computer programming, and many questions about the physics all around us. Registration for this course is by placement only. To ensure proper placement, students must have taken the physics placement examination prior to registering for Physics 1093.

PHYS 2220. Engineering Physics

Dale Syphers
Examines the physics of materials from an engineering viewpoint, with attention to the concepts of stress, strain, shear, torsion, bending moments, deformation of materials, and other applications of physics to real materials, with an emphasis on their structural properties. Also covers recent advances, such as applying these physics concepts to ultra-small materials in nano-machines. Intended for physics majors and architecture students with an interest in civil or mechanical engineering or applied materials science.



Dale Syphers: Bowdoin College: Physics

Education

Ph.D. in experimental Solid State Physics from Brown University.
M.Sc. in Physics from University of Massachusetts, Amherst.
B.S. in Physics from University of Massachusetts, Amherst.

Field of Research

High magnetic field effects and low temperature phenomena associated with electronic systems of restricted dimensionalities, including magneto-transport, Integer and Fractional Quantum Hall Effect, resonant tunneling structures, and properties of novel semiconductor systems.




Quantum Lifetime of Two-Dimensional Holes, J. P. Eisenstein, D. Syphers, L.N. Pfeiffer and K.W. West, Solid State Communications 143, pp. 365-368 (2007).

Inhomogeneous Strain Relaxation in Triple‑Barrier p‑Si/SiGe Nanostructures, C. D. Akyüz, H. T. Johnson, A. Zaslavsky, L. B. Freund, and D. A. Syphers , Physical Review B 60, 16597 (1999).

Inhomogeneous Strain in Individual Quantum Dots Probed by Transport Measurements, C. D. Akyüz, A. Zaslavsky, L. B. Freund, D. A. Syphers, and T. O. Sedgwick, Applied Physics Letters, 72,  1739, (1998) .

In-Plane Valence Band Nonparabolicity and Anisotropy in Strained SiGe Quantum Wells, A. Zaslavsky, T. P. Smith III, D. A. Grutzmacher, S. Y. Lin, T. O. Sedgwick, and D. A. Syphers, Phys. Rev. B 48, 15112 (1993).

Similarities between the Landau Spectra and Dispersion Relations in Si/Si1-xGex Quantum Wells Investigated by Magnetotunneling Spectroscopy, U. Gensser, V. P. Kesan, D. A. Syphers, T. P. Smith III, S. S. Iyer, and E. S. Yang, Appl. Phys. Lett. 63, 545 (1993).

Probing Band Structure Anisotropy using Angle-Resolved Magnetotunneling Spectroscopy, U. Gensser, V.P. Kesan, D.A. Syphers, T.P. Smith III, S.S. Iyer, and E. S. Yang, Physical Review Letters 67, 3828 (1991).

Comparisons of Edge State vs. Bulk Conduction in the Quantum Hall Regime, D. A. Syphers, J. H. Killoran, H. E. Brakewood and F. Reis, Surface Science 229, 37 (1990).                

The High Temperature Behavior of the Fractional Quantum Hall Effect,  J. E. Furneaux, D. A. Syphers, J. Poulin and B. F. Mason, Surface Science 229, 7 (1990).

Fractional Quantum Hall Effect with an Added Parallel Magnetic Field,  J. E. Furneaux, D. A. Syphers and A. G. Swanson, Physical Review Letters 63, 1098 (1989).

The Fractional Quantum Hall Effect in a Tilted Magnetic Field,  D. A.  Syphers and J. E. Furneaux, Solid State Commun. 65, 1513 (1988).