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| Staff Scientist |
| NAME |
William Evans |
| PHONE |
(925)424-3356 |
| FAX |
(925)423-2442 |
| E-MAIL |
Wjevans@llnl.gov |
| ADDRESS |
Lawrence Livermore National Lab
7000 East Avenue, L-041
Livermore, CA 94550 |
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William Evans' research covers a broad
range of subjects aimed at understanding the physics and chemistry
of materials under high-pressure/temperature conditions. These
activities include investigation of kinetic processes and
phase transformations in molecular solids and metals; characterization
of metals and molecular solids under high-pressure/temperature
conditions; synthesis and characterization of novel technological
materials. An area of particular emphasis is novel phases
of hydrogen and hydrides.
His experimental activities involve several
techniques such as ultrahigh-pressure diamond anvil cell work
and associated diagnostics; micro-optical probing techniques
such as Raman spectroscopy, visible absorption/transmission,
and IR spectroscopy; X-ray scattering - diffraction and spectroscopy
(inelastic scattering techniques). William has been working
at LLNL since 1995. He received his B.Sc. (Physics) from the
California Institute of Technology and his S.M and Ph.D. (Applied
Physics) from Harvard University. He is a member of the American
Physical Society, American Chemical Society, Optical Society
of America, Tau Beta Pi Honors Society, and often serves as
a science fair judge. |
W.J. Evans, M.J. Lipp, H. Cynn, et al., "X Ray Diffraction
and Raman Studies of Beryllium: Static and Elastic Properties
at High Pressures", Phys. Rev. B 72,
94113 (2005) [pdf]
Lipp, MJ; Evans, WJ; Yoo, CS, "Cryogenic loading of large
volume presses for high pressure experimentation and synthesis
of novel materials", Rev. Sci. Instrum. 76,
053903 (2005) [pdf]
Magnus J. Lipp; William J. Evans; Bruce J. Baer, et al. "High
energy density extended CO solid", Nat. Mater. 4,
211 215 (2005) [pdf]
H.E. Lorenzana, M.J. Lipp, and W.J. Evans, "Anomalous Molecular
Phase of Nitrogen: Implications to the Phase Diagram",
International Journal of High Pressure Research
22(1), 5-8 (2002) [pdf]
H.E. Lorenzana, M.J. Lipp, W.J. Evans, N. Hemmi, "Vibrational
Spectroscopy at High Pressures in CF4: Implications to the Phase
Diagram", Journal of Low Temperature Physics
122(3/4), 279-290 (2001) [pdf]
W.J. Evans, and I.F. Silvera, “The Index of Refraction,
Polarizability and Equation of State of Solid Molecular Hydrogen”,
Physical Review B 57(22), 14105-14109
[pdf]
(1998)
M.J. Lipp, W.J. Evans, V. Garcia Baonza, and H.E. Lorenzana,
“Carbon Monoxide: Spectroscopic Characterization of the
High-Pressure Polymerized Phase”, Journal of Low Temperature
Physics 111(3/4), 247-256 (1998) [pdf]
M.J. Lipp, V. Garcia Baonza, W.J. Evans, and H.E. Lorenzana,
“Nanocrystalline diamond: study of confinement, pressure,
and heating effects on phonon modes”, Physical Review
B 56(10), 5978-84 (1997) [pdf]
A. Garcia, M.L. Cohen, J.H. Eggert, F. Moshary, W.J. Evans,
K.A. Goettel, and I.F. Silvera, "Dielectric Properties
of Solid Molecular Hydrogen at High Pressure", Physical
Review B 45(17), 9709 (1992) [pdf] |
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