Lawrence Livermore National Laboratory



Jason Jeffries

Research Staff
Materials Science Division


 +1 925-422-4734


DegreeDiscipline/InstitutionYear
Ph.D. Physics
University of California at San Diego
2007
B.S. Physics
Clemson University
2000

Research Interests

Actinide physics and materials science. Recent research includes investigations of anomalous martensitic mechanisms in plutonium alloys, exploration of pressure-dependent properties of heavy fermion superconductors and magnets, and the development of high-pressure techniques for broad research applications.

Recent Publications

N. P. Butch, J. R. Jeffries, D. A. Zocco, and M. B. Maple (accepted), "Hydrostaticity and hidden order: implications for the temperature-pressure phase diagram of URu2Si2," J. High Press. Res.em> (2009).

J. R. Jeffries, K. J. M. Blobaum, M. A. Wall, and A. J. Schwartz (accepted), "Microstructural evidence for conditioning-dependent δ→α' transformations in retained δ-Pu," Acta Mater. (2009).

J. R. Jeffries, K. J. M. Blobaum, M. A. Wall, and A. J. Schwartz (in press), "Reproducible phase transformation in a single Pu-2.0 at.% Ga specimen," J. Nucl. Mater. (2009).

J. R. Jeffries, N. P. Butch, B. T. Yukich, and M. B. Maple, "The Evolution of the Ordered States of Single Crystal URu2Si2 under Pressure," J. Phys.: Condens. Matter 20, 095225 (2008). IOP Select

J. R. Jeffries, N. P. Butch, B. T. Yukich, and M. B. Maple, "Competing Ordered Phases in URu2Si2: Hydrostatic Pressure and Rhenium Substitution," Phys. Rev. Lett., 99, 217207 (2007).


Last update: