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Smith College - Physics
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Physics
Announcements

Spring 2015 Upcoming Seminars

April 3, 2015

Organic Magnetic Semiconductors: Bridging Quantum Chemistry to Condensed Matter Physics

Dr. Madalina Furis, Materials Science Program Director at the
University of Vermont

The selective coupling between polarized photons and electronic states in materials enables a new optically-oriented paradigm fort studying magnetic phenomena in complex materials. The tradition experimental approach to condenesed matter requires great quantum insight on the part of investigators because many existing high-magnetic field probes such as magnetometry, calorimetry, DC transport, etc. provide information on ensembles of coupled quantum states. Remarkable advances in high magnetic field technologies enable a new approach that introduces advanced spectroscopic techniques to systems in high magnetic fields where photons can probe individual quantum states and interactions introducting new tools that directly probe the quantum mechanical origins of macroscopic behavior.

For the past four years, the Furis group at the University of Vermont has been at the forefront of the deveopment and implication of such tools for the unique Florida Helix 25T split coil magnet where they performed the very first 25T Magnetic Circular Dichroism (MCD) to investigate magnetic properties of electrons in crystalline thin films of small molecule organic semiconductors. The presentation will mostly focus on the collective magnetic properties of d-shell ions metal phthalocyanine (Pc) thin films that one may think of as organic analogues of diluted magnetic semiconductors (DMS). Magneto-spectroscopy experiments show the exchange mechanisms are very different for the three systems studied, involving different electronic states in each species and/or hybridization between d-like orbitals and certain delocalized π-orbitals. The talk will also include a brief student-friendly tutorial on probing magnetism with light and exciting results of the first optical spectroscopy experiments conducted in the unique Florida State Split HELIX magnet at the National High Magnetic Field Laboratory (NHMFL).

April 10, 2015

Laser Communications

Amy Raudenbush '95

April 17, 2015

Title To Be Announced

Dr. Kathy Aidala

April 24, 2015

Title To Be Announced

Dr. Kendall Mahn, Assistant Professor at Michigan State University

Senior theses presentations

WOMEN IN PHYSICS

Women account for less than 20 percent of the bachelor's degrees in physics, which is why we are proud to support so many women every day in this field, along with other STEM fields where women are underrepresented, such as engineering.

Please watch this amazing video that shares stories and encouragement from many women in physics from around the world, without sugarcoating!