76 citations · 665 across the 27 of their papers we have counts for
9 papers · 1 filter
Quantum interference assisted spin filtering in graphene nanoflakes
Angelo Valli, Adriano Amaricci, Valentina Brosco +1
We demonstrate that hexagonal graphene nanoflakes with zigzag edges display quantum interference (QI) patterns analogous to benzene molecular junctions. In contrast with graphene s…
Rashba-metal to Mott-insulator transition
Valentina Brosco, Massimo Capone
The recent discovery of materials featuring strong Rashba spin-orbit coupling (RSOC) and strong electronic correlation raises questions about the interplay of Mott and Rashba physi…
Interplay between destructive quantum interference and symmetry-breaking phenomena in graphene quantum junctions
Angelo Valli, Adriano Amaricci, Valentina Brosco +1
We study the role of electronic spin and valley symmetry in the quantum interference (QI) patterns of the transmission function in graphene quantum junctions. In particular, we lin…
Pauli metallic ground-state in Hubbard clusters with Rashba spin-orbit coupling
Valentina Brosco, Daniele Guerci, Massimo Capone
We study the "phase diagram" of a Hubbard plaquette with Rashba spin-orbit coupling. We show that the peculiar way in which Rashba coupling breaks the spin-rotational symmetry of t…
Anisotropy of transport in bulk Rashba metals
Valentina Brosco, Claudio Grimaldi
The recent experimental discovery of three-dimensional (3D) materials hosting a strong Rashba spin-orbit coupling calls for the theoretical investigation of their transport propert…
Strong parameter renormalization from optimum lattice model orbitals
Valentina Brosco, Zu-Jian Ying, José Lorenzana
We revisit the old problem of which is the best single particle basis to express a Hubbard-like lattice model. A rigorous variational solution of this problem leads to equations in…