The anomalous Hall effect can be observed in ferromagnetic systems when subject to an electric current in the presence of magnetic field. This technique allows us to measure the magnetization within the material throughout the hysteresis loop.
Using a pulsed-laser illumination source and a detector sensitive to single photons, it is possible to determine the time it takes between excitation and photon emission in photoluminescent materials. By analyzing many such photons we can construct a histogram which gives the luminescence decay vs. time. Using this technique students in the Colton group are studying properties of semiconductor nanostructures such as InGaAs quantum dots.
We are searching for Young Stellar Objects in the Large Magellanic Cloud, a nearby galaxy. Studying how these young stars are distributed in the galaxy will help us better understand how stars form and how galaxies evolve.
We have built a non-neutral ion trap with the intention of confining an ionized beryllium-7 plasma. Beryllium-7 is the lightest element that decays exclusively by electron capture. The decay rate is sensitive to the electron configuration. We will use this trap to measure the decay rate of singly-ionized beryllium-7.
The acoustics group analyzes acoustic properties of various chemistry demonstrations dealing with explosive reactions. They use arrays of microphones and high speed video to aid in the analysis.
BYU is a unique and exciting place to study physics. View this video clip to learn about the opportunities available for graduate and undergraduate students.
Geminid Meteor Shower over Dashanbao Wetlands: The annual Geminid meteor shower is raining down on planet Earth this week. And despite the waxing gibbous moonlight, the reliable Geminids should be enjoyable tonight (night of December 13/14) near the shower's peak....
This photograph and Description come from NASA's Astronomy Picture of the Day web site.