6 papers
Non-Fermi-liquid behaviour of electrons coupled to gauge phonons
Rutvij Gholap, Alexey Ermakov, Alexander Kazantsev +3
We identify overdamped gauge phonons as a new microscopic route to non-Fermi-liquid behaviour in Dirac materials. These phonons couple to electronic currents rather than densities,…
Ordered phases and superconductivity in two-dimensional electron systems subject to pair spin-orbit interaction
Feng Liu, Alessandro Principi
Pair spin-orbit interaction can emerge in strongly-interacting systems characterized by a large spin-orbit coupling. Here we study the role of this interaction in stabilizing order…
Manipulating non-abelian anyons of Kitaev quantum spin liquids with local magnetic fields
Haoran Wang, Alessandro Principi
Non-abelian anyonic excitations of quantum spin liquids have potential for application to topological quantum computation, but designing logical operations requires developing prot…
Non-conservation of the valley density and its implications for the observation of the valley Hall effect
Alexander Kazantsev, Amelia Mills, Eoin O'Neill +3
We show that the conservation of the valley density in multivalley insulators is broken in an unexpected way by the electric field that drives the valley Hall effect. This implies…
Tunneling spectroscopy as a probe of fractionalization in 2D magnetic heterostructures
Matteo Carrega, Ivan J. Vera-Marun, Alessandro Principi
In this paper we develop the theory for 2D-to-2D tunneling spectroscopy aided by magnetic or quantum-order excitations, and apply it to the description of van-der-Waals heterostruc…
Nonconserved Density Accumulations in Orbital Hall Transport: Insights from Linear Response Theory
Hao Sun, Alexander Kazantsev, Alessandro Principi +1
We present a linear response theory for stationary density accumulations in anomalous transport phenomena, such as the orbital Hall effect, where the transported density is odd und…