Many-Body Electronic Structure of Americium Metal
Many-Body Electronic Structure of Americium Metal
We report computer based simulations of energetics, spectroscopy, and electron-phonon interaction of americium using a novel spectral density functional method. This approach gives rise to a new concept of a many-body electronic structure and reveals the unexpected mixed valence regime of Am $5{f}^{6}$ electrons which under pressure acquire the $5{f}^{7}$ …