Condensed Matter Physics Seminar
Spin and Magnetization Mapping in Spintronics Materials and Devices
Department of Physics and Astronomy
Wayne State University, Detroit, MI
Spin polarization and magnetization are the two most critical materials properties in spintronic devices. I will describe Point Contact Andreev Reflection (PCAR) Spectroscopy—a simple yet effective technique we have developed to directly measure the spin polarization in a wide variety of magnetic materials systems. I will present our recent measurements of some novel magnetic materials, including dilute magnetic semiconductors, such as GaMnAs and InMnSb, as well as Mn5Ge3 and EuO1-x. EuO1-x was epitaxially grown on Si. I will also briefly describe some of our new experimental capabilities, such as Scanning Hall Probe Microscope, which allows us to measure magnetization on a nanoscale.
Thursday, October 26, 2006
Gant Science Complex
(The seminar is followed by coffee/tea, cookies, and an informal discussions.)