Many-body electronic structure calculations for Americium metal

ORAL

Abstract

Total energies and electronic spectral functions for Americium are calculated using novel dynamical mean field based spectral density functional approach. Pressure dependence as a function of volume and bulk modules for different phases of Am will be studied by this many body calculation and compared to the predictions of experiment. Volume dependent spectral functions will be extracted and discussed in connection to the anomalous resistivity behavior showing its almost one order of magnitude increase under pressure. Electron-phonon interactions estimated in the presence of electronic correlations using linear response method shed a new light on superconductivity of this actinide.

*Work supported by NSF, DOE and CMSN

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Authors

  • Sergej Savrasov

    • New Jersey Instiute of Technology
    • New Jersey Institute of Technology

  • Gabriel Kotliar

    • Rutgers University
    • Center for Materials Theory, Department of Physics and Astronomy, Rutgers University
    • Department of Physics, Rutgers University, Piscataway NJ USA
    • Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ 08854-8019, USA
    • Center for Materials Theory, Serin Physics Laboratory, Rutgers University, 136 Frelinghuysen Road, Piscataway, New Jersey 08854
    • Physics Department and Center for Materials, Rutgers University, Piscataway NJ USA

  • Sahana Murthy

    • Rutgers University