94 citations · 282 across the 9 of their papers we have counts for
9 papers
Many-body theory of positron binding in polyatomic molecules
J. Hofierka, B. Cunningham, C. M. Rawlins +2
Positrons bind to molecules leading to vibrational excitation and spectacularly enhanced annihilation. Whilst positron binding energies have been measured via resonant annihilation…
Efficient ab initio calculation of electronic stopping in disordered systems via geometry pre-sampling: application to liquid water
Bin Gu, Brian Cunningham, Daniel Muñoz-Santiburcio +3
Knowledge of the electronic stopping curve for swift ions, , particularly around the Bragg peak, is important for understanding radiation damage. Experimentally, however, t…
Possible phonon-induced electronic bi-stability in VO for ultrafast memory at room temperature
Cédric Weber, Swagata Acharya, Brian Cunningham +9
VO is a model material system which exhibits a metal to insulator transition at 67C. This holds potential for future ultrafast switching in memory devices, but typica…
Spectroscopic size and thickness metrics for liquid-exfoliated h-BN
Aideen Griffin, Andrew Harvey, Brian Cunningham +8
For many 2D materials, optical and Raman spectra are richly structured, and convey information on a range of parameters including nanosheet size and defect content. By contrast, th…
Accurate optical properties from first principles: a Quasiparticle Self consistent GW plus Bethe-Salpeter Equation approach
Brian Cunningham, Pooya Azarhoosh, Dimitar Pashov +2
We present an approach to calculate the optical absorption spectra that combines the quasiparticle self-consistent GW method [Phys. Rev. B, 76 165106 (2007)] for the electronic str…
Non-conservative current-driven dynamics: beyond the nanoscale
Brian Cunningham, Tchavdar N. Todorov, Daniel Dundas
Long metallic nanowires combine crucial factors for non-conservative current-driven atomic mo- tion. These systems have degenerate vibrational frequencies, clustered about a Kohn a…