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Arthur J Freeman
Researcher at Northwestern University
Publications - 915
Citations - 41994
Arthur J Freeman is an academic researcher from Northwestern University. The author has contributed to research in topics: Electronic structure & Electronic band structure. The author has an hindex of 96, co-authored 915 publications receiving 39210 citations. Previous affiliations of Arthur J Freeman include University of Paris & Northwest University (United States).
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Full-potential self-consistent linearized-augmented-plane-wave method for calculating the electronic structure of molecules and surfaces: O 2 molecule
TL;DR: In this article, the authors generalized the linearized-augmented-plane-wave (LAPW) method for thin films by removing the remaining shape approximation to the potential inside the atomic spheres, and implemented a new technique for solving Poisson's equation for a general charge density and potential is described and implemented in the film LAPW method.
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Crystal Growth of the Perovskite Semiconductor CsPbBr3: A New Material for High-Energy Radiation Detection
Constantinos C. Stoumpos,Christos D. Malliakas,John A. Peters,Zhifu Liu,Maria Sebastian,Jino Im,Thomas C. Chasapis,Arief Wibowo,Duck Young Chung,Arthur J Freeman,Bruce W. Wessels,Mercouri G. Kanatzidis +11 more
TL;DR: The perovskite compound CsPbBr3 as mentioned in this paper is a direct band gap semiconductor which meets most of the requirements for successful detection of X and γ-ray radiation, such as high attenuation, high resistivity, and significant photoconductivity response, with detector resolution comparable to that of commercial, state-of-the-art materials.
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CsSnI3: Semiconductor or Metal? High Electrical Conductivity and Strong Near-Infrared Photoluminescence from a Single Material. High Hole Mobility and Phase-Transitions
In Chung,Jung Hwan Song,Jino Im,John Androulakis,Christos D. Malliakas,Hao Li,Arthur J Freeman,John T. Kenney,Mercouri G. Kanatzidis +8 more
TL;DR: The synthesis of pure polymorphic crystals, the preparation of large crack-/bubble-free ingots, the refined single-crystal structures, and temperature-dependent charge transport and optical properties of CsSnI(3), coupled with ab initio first-principles density functional theory (DFT) calculations are described.
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Theoretical Investigation of Some Magnetic and Spectroscopic Properties of Rare-Earth Ions
Arthur J Freeman,R. E. Watson +1 more
TL;DR: In this article, a set of nonrelativistic Hartree-Fock wave functions were obtained for rare-earth ions, and the results were used to discuss spin-orbit splittings, hyperfine interactions and the determination of nuclear magnetic moments.