47 citations · 136 across the 8 of their papers we have counts for
4 papers · 1 filter
Spin orientation -- a subtle interplay between strain and multipole Coulomb interactions
Subhra Sen Gupta, Shinjini Paul, Suman Mandal +2
We address the technologically important issue of the spin orientation on a correlated magnetic surface and how to manipulate it. We consider a prototypical strongly correlated sys…
The importance of inter-site coherences in the x-ray absorption spectra of mixed-valent systems
Subhra Sen Gupta, Hiroki Wadati, G. A. Sawatzky
We study the importance of inter-site coherences and quantum interference effects in the x-ray absorption spectroscopy (XAS) of mixed-valent systems. We demonstrate its importance,…
Coexistence of Bound and Virtual-bound States in Shallow-core to Valence Spectroscopies
Subhra Sen Gupta, J. A. Bradley, M. W. Haverkort +3
We develop the theory for shallow-core to valence excitations when the multiplet spread is larger than the core-hole attraction, e.g., if the core and valence orbitals have the sam…
Probing Electronic Correlations in Actinide Materials Using Multipolar Transitions
J. A. Bradley, S. Sen Gupta, G. T. Seidler +7
We report nonresonant inelastic x-ray scattering from the semi-core 5d levels of several actinide compounds. Dipole-forbidden, high-multipole features form a rich bound-state spect…