483 citations · 689 across the 20 of their papers we have counts for
24 papers
Orbital angular momentum in crystalline solids: non-equilibrium theory
Sangeeta Sharma, Peter Elliott, Samuel Shallcross
We develop a general operator theory of orbital angular momentum (OAM) in periodic solids that applies equally to equilibrium and coherently driven states. Employing the crystal mo…
All optical ultrafast pure spin current in the altermagnet CrSO
Deepika Gill, Ruikai Wu, Peter Elliott +2
All-optical generation of pure spin current -- the flow of spin in the absence of a corresponding charge flow -- relies on a symmetry based compensation of valley charge. The 2d $d…
Ultrafast ghost Hall states in a 2d altermagnet
Ruikai Wu, Deepika Gill, Sangeeta Sharma +1
Two-dimensional materials that exhibit optically active spin and valley degrees of freedom represent one of the most fascinating -- and potentially most technologically useful -- p…
Ultrafast Néel vector switching
Eddie Ivor Harris-Lee, John Kay Dewhurst, Wenhan Chen +3
We predict ultrafast switching in a chiral anti-ferromagnet that occurs at femtosecond times, nearly 5 orders of magnitude faster than the torque induced nanosecond switching previ…
Valley polarization of graphene via the saddle point
Deepika Gill, Sangeeta Sharma, Peter Elliott +2
Graphene, and other members of the monolayer Xene family, represent an ideal materials platform for "valleytronics", the control of valley localized charge excitations. The absence…
Generation of pure, spin polarized, and unpolarized charge currents at the few cycle limit of circularly polarized light
Deepika Gill, Sangeeta Sharma, Sam Shallcross
In certain members of the transition metal dichalcogenide (TMDC) family, laser pulses of oppositely circularly polarized light excite electrons of opposite spin. Here we show that…