The effect of applied magnetic field on photocurrent generation in poly-3-hexylthiophene:[6,6]-phenyl C61-butyric acid methyl ester photovoltaic devices

This is the author’s version of a work that was accepted for publication in Journal of Physics: Condensed Matter http://dx.doi.org/10.1088/0953-8984/20/45/45220

Topological characterization of neutron star crusts

Neutron star crusts are studied using a classical molecular dynamics model developed for heavy ion reactions. After the model is shown to produce a plethora of the so-called "pasta" shapes, a series of techniques borrowed from nuclear physics, condensed matter physics and topology are used to craft a method that can be used to characterize the shape of the pasta structures in an unequivocal way

Research Report 2008-2009

Introduction From the Chairperson Astronomy Atomic Physics Condensed Matter Physics Nuclear Physics Physics Education Research and Public Lectures at WMU Personne

Research Report 2007-2008

Introduction From the Chairperson Astronomy Atomic Physics Condensed Matter Physics Nuclear Physics Physics Education Publications Dissertations Presentations Proposals and Grants Scholarly Activity Personne

Ground State Spin Oscillations of a Two-Electron Quantum Dot in a Magnetic Field

Crossings between spin-singlet and spin-triplet lowest states are analyzed within the model of a two-electron quantum dot in a perpendicular magnetic field. The explicit expressions in terms of the magnetic field, the magnetic quantum number $m$ of the state and the dimensionless dot size for these crossings are found.Comment: 8 pages, 2 figures (PS files). The paper will appear in Journal of Physics: Condensed Matter, volume 11, issue 11 (cover date 22 March 1999) on pages 83 - 8

Research Report 2012

Cover Designs Introduction Astronomy Atomic and Molecular Physics Condensed Matter Physics Physics Education Research and Public Lectures at WMU Personnel January 1- December 31, 201

Research Report 2010

Introduction From the Chairperson Astronomy Atomic and Molecular Physics Condensed Matter Physics Physics Education Research and Public Lectures at WMU Personnel January 1-December 31, 201

Research Report 2011

Introduction From the Chairperson Atomic and Molecular Physics Condensed Matter Physics Nuclear Physics Physics Education Research and Public Lectures at WMU Personnel January 1- December 31, 201

Memory effects in vibrated granular systems

Granular materials present memory effects when submitted to tapping processes. These effects have been observed experimentally and are discussed here in the context of a general kind of model systems for compaction formulated at a mesoscopic level. The theoretical predictions qualitatively agree with the experimental results. As an example, a particular simple model is used for detailed calculations.Comment: 12 pages, 5 figures; to appear in Journal of Physics: Condensed Matter (Special Issue: Proceedings of ESF SPHINX Workshop on ``Glassy behaviour of kinetically constrained models.''