Welcome to Philip Hammar's page from the Naval Reseach Laboratory, Materials Physics Branch Artificially Structured Materials Section

I am a National Research Council Resident Research Associate working with Mark Johnson here at the Naval Reseach Laboratory. Starting the second year of my appointment, I have spent the last year working on injecting a spin polarized electrical current into a two-dimensional electron gas (2DEG). I have been quite successful, in collaboration with Mark Johnson here in Materials Physics, and B. R. Bennett and Ming-Jey Yang in the Electronics Science and Technology Division, Electronic Materials Branch, and have published the work in Physical Review Letters. Here is a PDF version of PRL 83, 203 (1999). Also, you can see the presentation I gave at the American Physical Society Centennial Meeting in Atlanta, GA, 1999 on this subject. We have done more work in this area, particularly in studying the temperature dependence of the spin injection effect and comparing it to the Hall coefficient for the underlying 2DEG, and found them to be different. See it here after it has gone most of the way through the publication process.

To make sure CPU cycles do not go to waste, I have been running the Seti@Home screen saver software. I archive the mit.edu seti@home statistics weekly to keep track of my progress on that Top 100 list. I have 7 CPU's working for me, generating ~8.4 work units per day. Visit the Seti@Home Web site to find out more about the project.
 

Last modified December 7, 1999.    Send comments or corrections to jackal@alum.mit.edu.