Barry Cooper
Professor Emeritus
S.B., Massachusetts Inst. of Technology, 1957
Ph.D., University of California at Berkeley, 1961

West Virginia University
Department of Physics
PO Box 6315
Morgantown, WV 26506

Tel: (304)293-3423
Fax: (304)293-5732
bcooper@wvu.edu

My research is in condensed matter theory and in materials theory (including computational modeling and dynamic simulations). In condensed matter theory, the focus of my research is on the magnetic, electronic, and crystallographic behavior of rare-earth and actinide systems involving f-electron effects, with my main current interest being in magnetic ordering and associated properties of correlated-electron systems. In materials theory and computational modeling, we are investigating the thermo-mechanical properties, phase separation, and interfacial behavior of structural and magnetic metallic systems and the defect structures in wide band gap semiconductors. Our predictive modeling either directly uses ab initio electronic structure calculations or uses atomistic classical potentials based on such ab initio total energy calculations in large-scale atomistic modeling using both molecular dynamics and probabilistic (monte carlo) techniques. We are investigating behavior such as surface reconstruction, additive and vacancy distributions and associated lattice relaxation, and precipitate and microstructure formation effects on structural materials systems, and imperfect interfacing effects on magnetic multilayer systems.

Recent Publications

“Consequences of Having Two Kinds of f-Electrons for SCE Systems as Treated by a Synthesis of Many-Body Theory and Electronic Structure”, B.R. Cooper, to appear in Electron Correlations and Materials Properties (A. Gonis and N. Kioussis, Eds, Plenum Publishing, 1999).

“f-Electronic and Magnetic Behavior Between Atomiclike and Fully Itinerant: Random Localized Magnetism and Heavy Fermions”, B.R. Cooper, to appear in Magnetism in Heavy Fermion Systems (ed, Harry Radousky, World Scientific Publishing Co., 1999).

“Self-Induced Anderson Localization: Thermally-Driven fcc Transition and Depression of Melting Temperature in Plutonium”, B.R. Cooper, to appear in Los Alamos Science, 1999.

“Predicted Lattice Relaxation Around Vacancies in Zinc Selenide”, L. Muratov, S. Little, B.R. Cooper, T.H. Myers, J.M. Wills, and D.L. Price to appear in Phys. Rev. B (1999). (with).

“Beyond One-Electron Dynamics: Predicted and Observed Magnetic Ordering collapse for Two Kinds of Uranium f-Electrons”, B.R. Cooper, Y.L. Lin and Q.G. Sheng, Physica B 259-261, 176 (1999). (with).

“From Heavy Fermions to Random-Localized-Site Behavior Via Anderson Localization”, B.R. Cooper, O. Vogt, Q.G. Sheng, and Y.L. Lin, Philosophical Magazine B 79, 683 (May, 1999).

“Magnetic Ordering in Strongly-Correlated-Electron Uranium Systems: Consequences of Two Kinds of f-Electron-Band-Electron States”, B.R. Cooper, Y.-L. Lin and Q.-G. Sheng J. Appl. Phys. 85, 5338 (1999).

“Ab Initio Study of Anisotropic Magnetism in Uranium Compounds”, E.M. Collins, N. Kioussis, B.R. Cooper, and S.P. Lim J. Appl. Phys. 85, 6226 (1999).

“Ab-Initio-Based Calculations of Vacancy Formation and Clustering Energies Including Lattice Relaxation in Fe3Al”, L.S. Muratov, B.R. Cooper, and J.M. Wills, to appear in MRS Symposium Proceedings Series (1999).

“Calculated Lattice Relaxation in Pu-Ga”, J.D. Becker, B.R. Cooper, J.M. Wills, and L. Cox, Phys. Rev. B 58B, 5143 (1998).

“Optical Properties of DyP and DyBi: Experiment and Theory”, J. Schoenes, P. Repond, F. Hulliger, B.R. Cooper, and S.P. Lim, J. Magn. and Magn. Mater. 177-181, 1046 (1998).

“Coarsening in the Presence of Vacancies”, S. Mukherjee and B.R. Cooper, Materials Science and Engineering A 248, 101 (1998).

“Calculated Lattice Relaxation in Pu-Ga Alloys”, J.D. Becker, B.R. Cooper, J.M. Wills, and L. Cox, Journal of Alloys and Compounds 271-273, 367 (1998).

“Segregation of Niobium Solute in Nickel Toward Grain Boundaries and Free Surfaces”, L.S. Muratov and B.R. Cooper, 19, 503, Journal of Phase Equilibria (1998).

“f-Electron Delocalization/Localization and the Abrupt Disappearance of Uranium Magnetic Ordering with Dilution Alloying”, B.R. Cooper and Y.L. Lin, J. Appl. Phys. 83, 6432 (1998).

“A New Method for Including Locally-Based Correlations in the Electronic Structure of Cerium and Uranium Materials”, B.R. Cooper, Y.L. Lin and Q.G. Sheng, Physica B 230-232, 27 (1997).

“Electronic Structure and Optical Properties of Dysprosium Monopnictides”, J. Schoenes, P. Repond, F. Hulliger, B.R. Cooper, and S.P. Lim to appear in Phys. Rev. B (1997).

“Correlated band magnetism of cerium and actinide materials,” B. R. Cooper, Y. Lin, and Q. G. Sheng, Journal of Applied Physics 81, 3856 (1997).

“Electronic structure of Pu compounds with some group-IIIB metals: two regimes of behavior,” J. D. Becker, J. M. Wills, L. Cox, and B. R. Cooper, Physical Review B 54, 17265 (1996).

“Pressure-induced magnetic ordering effects in correlated-electron uranium monochalcogenides,” Q. C. Sheng and B. R. Cooper, Journal of Magnetism and Magnetic Materials 164, 335 (1996).

“TiC(001) surface relaxation,” D. L. Price, J. M. Wills, and B. R. Cooper, Physical Review Letters 77, 3375 (1996).

“Atom-specific thermal vibration amplitudes in stoichiometric NiAl: agreement of neutron diffraction and ab-initio-based molecular dynamics,” J. Mei, B. R. Cooper, A. C. Lawson, J. A. Roberts, and J. D. Cotton, Philosophical Magazine B 74, 169 (1996).

“Inelastic x-ray scattering from TiC and Ti single crystals,” A. T. Macrander, P. A. Montano, D. L. Price, V. I. Kushir, R. C. Blasdell, C. C. Kao, and B. R. Cooper, Physical Review B 54, 305 (1996).

“Many-body atomistic model potential for intermetallic compounds and alloys and its application to NiAl, ” J. Mei, B. R. Cooper, and S. P. Lim. Physical Review B 54, 178 (1996).

“Hybridization-induced magnetism in correlated cerium systems,” N. Kioussis, J. Thevenot, B. R. Cooper, and Q. G. Sheng, Journal of Applied Physics 79, 6420 (1996).

“Modelling of adsorption of iron impurities at the surface of graphite,” S. S. Peng, B. R. Cooper, and Y. G. Hao, Philosophical Magazine B 73, 611 (1996).

“Combined Effect of Hybridization and Exchange-Coulomb Interaction on Magnetic Ordering in Correlated-f-Electron Cerium Systems,” Physical Review B 50, 965 (1994). (with Q.G. Sheng).

“Molecular Dynamics Modeling Using Ab Initio Interatomic Potentials for Thermal Properties of Ni-Rich Alloys,” pp 165-174 in Alloy Modeling and Design (eds G.M. Stocks and P.E.A. Turchi, TMS Publishing, Warrendale, PA, 1994). (with J. Mei, Y.G. Hao, and F.L. Van Scoy).

“Prediction of Pressure-Induced Changes in Magnetic Ordering of Correlated-Electron Uranium Systems,” J. Appl. Phys. 75, 7035 (1994). (with Q.G. Sheng).

“Modeling of Chemisorption on Copper Oxide Supported on Alumina,” Surface Science 312, 250 (1994). (with Y.G. Hao).

“Consequences of Competing Hybridization for Magnetic Ordering in Correlated-Electron Lattices,” J. Appl. Phys. 76, 6130 (1994). (with C. Sanchez-Castro and K.S. Bedell).