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Science Night Live: Kyle Dawson

The College of Science will present a "Science Night Live!" event next Wednesday, January 25th, from 5:30 p.m. to 7:00 p.m. at Keys on Main, 242 South Main St. (next to Sam Weller's bookstore). Invite a friend, make a date, and stop by after work!

Kyle Dawson, assistant professor of physics & astronomy at the U, will discuss how astronomers at the U and across the world are "Revealing the Secrets of the Universe."

How does the universe grow and evolve with time?  How did the universe look ten billion years ago, and how will it look in another ten billion years?  How can we build an experiment to address these questions?
 
“In the last 15 years, we have made startling discoveries about the universe as we have attempted to answer these questions,” says Dawson.
 
As members of the Sloan Digital Sky Survey, astronomers at the U are mapping more than 1.5 million galaxies. Join us to learn how we will find those galaxies and use that information to better understand the nature of the universe.
 
You are welcome to mix-and-mingle from 5:30 to 7:00 at Keys on Main. A complete food menu and drink menu will be available. Join us for a stimulating discussion and social event!  
 
In addition, this month's Science Night Live will feature a brief science trivia contest, as well as a free raffle for some awesome prizes!  Event is free and open to the public. Must be 21 or over. Call (801) 581-6958 for more info.

[Ride the UTA TRAX to the Gallivan Plaza stop. Or, there is limited street parking available on 200 South and 300 South that is free after 6:00 pm. Perhaps the easiest parking is in the Wells Fargo building lot, accessible from 300 South. See www.keysonmain.com.]

Daily Utah Chronicle Article here.

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MRSEC Seminar: Dr. Vardeny

MRSEC Seminar: Dr. Vardeny

Wednesday January 25, 2012
4:10-5:00 p.m.
L103 WEB

 

Professor Z. Valy Vardeny
Distinguished Professor, Department of Physics & Astronomy, University of Utah

Presented by the Departments of Materials Science and Engineering & Metallurgical Engineering


“Organic Spintronics”


Organic semiconductors have been used as active layer in devices such as organic light-emitting diodes (OLEDs), photovoltaic cells, field-effect transistors, and lasers. Recently there has been a growing interest in spin and magnetic field effects in these materials. This include optically detected magnetic resonance where long spin coherence time was demonstrated; OLEDs where substantive magneto-electroluminescence and magneto-conductance were obtained; and organic spin valves (OSV) where spin injection from ferromagnetic (FM) electrodes was obtained. The interest in spin transport in organic semiconductors has been motivated by the weak spin-orbit interaction that is caused by the light building block elements such as carbon and hydrogen, and the small hyperfine interaction (HFI) with the nuclei.


In this talk the status of the young field of ‘Organic Spintronics’ will be reviewed. The necessary ingredients needed for the success of this field will be summarized, and evaluated by recent experiments. In particular the role of the HFI in magneto-transport will be elucidated via the isotope effect. Three applications of Organic Spintronics will be discussed: organic diodes with two FM electrodes for use as OSV; with one FM electrode for magnetic detectors; and organic diodes with no FM electrodes as magnetic sensors.

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