
Title
Physicist 
Email
hood9@llnl.gov 
Phone
(925) 4225787 
Organization
Not Available
Personal Background
Randolph Hood has been a staff physicist in condensed matter physics at LLNL since January 1999. His graduate adviser was Leo Falicov and his thesis was entitled "Magnetic Metallic Multilayers" where he proposed a theory of the Giant Magnetoresistance of Magnetic Metallic Multilayers. These materials have since been utilized in magnetic hard drives allowing for their continued exponential growth in storage capacity. Dr. Hood then became a postdoctoral fellow at Georgia Tech University in Atlanta (19941996) where he developed an approach to use Quantum Monte Carlo to calculate the exchange and correlation density of realistic materials such as silicon which were compared with approximations widely used in implementations of density functional theory. From 1996 to 1998 he was a postdoctoral fellow at Cambridge University in Cambridge, England. At Cambridge he carried out Quantum Monte Carlo calculations of excitation energies of semiconductors and defects.
Ph.D., Condensed matter physics, University of California at Berkeley, 1994
B.S., Physics, Northwestern University, 1989
 "Quantum Monte Carlo study of the optical and diffusive properties of the vacancy defect in diamond," R.Q. Hood, P.R.C. Kent, R.J. Needs, P.R. Briddon, Phys. Rev. Lett. 91, 076403 (2003).
 "Quantum Monte Carlo Calculations of Nanostructure Optical Gaps: Application to Silicon Quantum Dots," A.J. Williamson, J.C. Grossman, R.Q. Hood, A. Puzder, and G. Galli, Phys. Rev. Lett. 89, 196803 (2002).
 "Dissociation of water under pressure," E. Schwegler, G. Galli, F. Gygi, and R.Q. Hood, Phys. Rev. Lett. 87, 265501 (2001).
 "Linearscaling quantum Monte Carlo calculations," A.J. Williamson, R.Q. Hood, and J.C. Grossman, Phys. Rev. Lett. 87, 246406 (2001).
 "A first principles molecular dynamics simulation of the hydrated magnesium ion," F.C. Lightstone, E. Schwegler, R.Q. Hood, F. Gygi, and G. Galli, Chem. Phys. Lett. 343, 549 (2001).
 "Ab initio simulations of compressed liquid deuterium," G. Galli, R.Q. Hood, A.U. Hazi, and F. Gygi, Phys. Rev. B 61, 909 (2000).
 "Quantum Monte Carlo investigation of exchange and correlation in silicon," R.Q. Hood, M.Y. Chou, A.J. Williamson, G. Rajagopal, R.J. Needs, and W.M.C. Foulkes, Phys. Rev. Lett. 78, 3350 (1997).