William W. Warren, Jr.

Professor of Physics

Department of Physics, 301 Weniger Hall, Oregon State University, Corvallis, OR 97331-6507  

Office: Weniger 313, 541-737-4024   •   wwarren@physics.oregonstate.edu

Education:

  • Stanford University, Stanford, CA, B.S. in Physics (1960)
     
  • Washington University, St. Louis, MO, Ph.D. in Physics (1965)
     

Courses:

  • PH427/ph527  Paradigms in Physics: Periodic Systems (Spring 2007)
  • PH607            Professional Communications for Physicists (Spring 2007)
  • PH461/PH561 Capstones in Physics: Mathematical Methods (Fall 2006)

 

Research:

My research in experimental solid state physics uses mainly the tools of nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR).  In recent years, my group has focused on the study of novel electronic materials and electronically active defects.  Examples include investigation of carrier dynamics in transparent conducting oxides, temperature-dependent local magnetic effects on donors in silicon, and optically bi-stable impurity states in the ionic semiconductor CdF2. These experiments exploit the magnetic hyperfine interactions between nuclear magnetic moments and the spins of carriers and localized electrons in various materials.  There are opportunities in my program for Master's degree projects and undergraduate research including Senior Thesis projects.

 Recent Journal Publications:

  •     "Temperature-Dependent NMR Study of the Impurity State in Heavily-Doped Si:P," E. M. Meintjes, J. Danielson, and W. W. Warren, Jr., Phys. Rev. B 71, 035114-1 - 035114-14 (2005).

  •     "Nuclear Quadrupole Resonance Studies of Transparent Conducting Oxides," W. W. Warren, Jr., A. Rajabzadeh, T. Olheiser,  J. Liu, J. Tate, and M. K. Jayaraj, and K. A. Vanaja, Sol. State NMR 26, 209-214 (2004).

  •        "Nuclear Magnetic Resonance in Expanded Fluid Metals," W. W. Warren, Jr., Z. Phys. Chem. 217,  775 - 781 (2003).

  •     "Nuclear Spin-Lattice Relaxation by Optically Bistable Defects in CdF2:In," M. Shroyer, W. W. Warren, Jr., and A. I. Ryskin, Phys. Rev. B 65, 165202-1 - 165202-6 (2002).

  •     "Electronic Properties of Metal/Molten Salt Solutions," W. W. Warren, Jr. in Molten Salts: From Fundamentals to Applications, ed. M. Gaune-Escard (Kluwer, Dordrecht, 2002), p. 23 -

  •     "NMR Investigation of CdF2:Ga," D. Hilger, S. A. Kazanskii, A. I. Ryskin, and W. W. Warren, Jr., Physica B: Condensed Matter  308-310, 1020-1022 (2001).

Book:  

  •     "Fluid Metals," F. Hensel and William W. Warren, Jr. (Princeton Press, Princeton, 1999)

Other Activities:

  •     Head Graduate Advisor
  •     Director, Professional Science Master's Program in Applied Physics