29 citations · 40 across the 4 of their papers we have counts for
5 papers
Novel Transformations of PbTiO3 with Pressure and Temperature
Husam Farraj, Stefano Racioppi, Gaston Garbarino +8
We investigated the behavior of lead titanate (PbTiO3) up to 100 GPa, both at room temperature and upon laser heating, using synchrotron X ray diffraction combined with density fun…
Graphene physics and insulator-metal transition in compressed hydrogen
Ivan I. Naumov, R. E. Cohen, Russell J. Hemley
Compressed hydrogen passes through a series of layered structures in which the layers can be viewed as distorted graphene sheets. The electronic structures of these layered structu…
Pressure dependence of the monoclinic phase in (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 solid solutions
Muhtar Ahart, Stanislav Sinogeikin, Olga Shebanova +5
We combine high-pressure x-ray diffraction, high-pressure Raman scattering, and optical microscope to investigate a series of PMN-xPT solid solutions (x=0.2, 0.3, 0.33, 0.35, 0.37,…
Relative importance of crystal field versus bandwidth to the high pressure spin transition in transition metal monoxides
Luke Shulenburger, Sergey Y. Savrasov, R E Cohen
The crystal field splitting and d bandwidth of the 3d transition metal monoxides MnO, FeO, CoO and NiO are analyzed as a function of pressure within density functional theory. In a…
The Melting Curve and Premelting of MgO
R. E. Cohen, J. S. Weitz
The melting curve for MgO was obtained using molecular dynamics and a non-empirical, many-body potential. We also studied premelting effects by computing the dynamical structure fa…