William Pratt

Professor Emeritus, Department of Physics & Astronomy

Photo of: William Pratt

Bio

Topics in Experimental Condensed Matter Physics such as:
* Electronic Transport in Metals at Low and Ultralow Temperatures
* Giant Magnetoresistance in Magnetic Multilayers with Current Perpendicular to the Plane of the layers (CPP-MR)
* Spin-torque Studies of Nanometer-Scale Magnetic Structures
* Spin-Triplet Superconductivity in Superconductor/Ferromagnet Systems

Professor Pratt enjoys his retirement from a residence in Colorado.

# Education
* 1967: Ph.D., University of Minnesota
* 1965: M.S., University of Minnesota
* 1961: B.A., Amherst College

Selected Publications

Controlled Normal and Inverse Magnetoresistance and Current-Driven Magnetization Switching in Magnetic Nanopillars, M. AlHajDarwish, H. Kurt, S. Urazhdin, A. Fert, R. Loloee, W.P. Pratt Jr., and J. Bass, Phys. Rev. Lett. 93, 157203 (2004).
Current Perpendicular (CPP) Magnetoresistance in Magnetic Metallic Multilayers, (J. Bass and W.P. Pratt Jr.), J. Magn. Magn. Mat. 200, 274 (1999)
Current-Driven Magnetic Excitations in Permalloy-Based Multilayer Nanopillars, S. Urazhdin, N.O. Birge, W.P. Pratt Jr., and J. Bass, Phys. Rev. Lett. 91, 146803 (2003).
Detecting domain wall trapping and motion at a constriction in narrow ferromagnetic wires using perpendicular-current giant magnetoresistance, A.J. Zambano and W.P. Pratt Jr., Appl. Phys. Lett. 85, 1562 (2004).
Direct measurement of quasiparticle evanescent waves in a dirty superconductor, J.Y. Gu, A. Caballero, R.D. Slater, R. Loloee and W.P. Pratt, Jr., Phys. Rev. B Rapid Comm. 66, 140507 (2002).
Observation of Spin-Triplet Superconductivity in Co-based Josephson Junctions, (Trupti S. Khaire, Mazin A. Khasawneh, W. P. Pratt, Jr., and Norman O. Birge), Phys. Rev. Lett. 104, 137002 (2010).
Spin-Diffusion Lengths in Metals and Alloys, and Spin-Flipping at Metal/Metal Interfaces: an Experimentalist’s Critical Review, (J. Bass and W.P. Pratt Jr.), J. Phys. Cond. Matt. 19, 183201 (2007).