295 citations · 807 across the 37 of their papers we have counts for
8 papers · 1 filter
Correlations between superconducting and resistive anisotropies
Sayan Banerjee, Harley D. Scammell, Mathias S. Scheurer
There are multiple possible origins of transport anisotropies in metals and superconductors. For instance, rotational symmetry can be spontaneously broken in the normal state as a…
Group theory method for extracting order parameters from scanning tunneling microscopy data
Julian Ingham, Yu-Xiao Jiang, M. Zahid Hasan +1
Scanning tunneling microscopy (STM) is a powerful local probe of correlated electronic states. Here we present a group theoretical framework for the analysis of STM data, filtering…
Spin-orbit crossover and the origin of magnetic torque in kagome metals
Mathias S. Scheurer, Harley D. Scammell
Recent experiments on the kagome metal CsVSb reveal a curious phase transition-like feature: a nematic magnetic torque response that abruptly sets in at K,…
Exciton condensation from level repulsion: application to bilayer graphene
Harley D. Scammell, Oleg P. Sushkov
Exciton condensation in semiconductors and semimetals has long been predicted but remains elusive. In a semiconductor, condensation occurs when the exciton binding energy matches t…
Zener tunnelling in biased bilayer graphene via analytic continuation of semiclassical theory
Harley Scammell, Oleg P. Sushkov
Employing a semiclassical method based on analytic continuation, we compute the electron-hole pair production rate in biased bilayer graphene subject to an in-plane electric field.…
Moiré -valley bilayers: quasi-one-dimensional physics, unconventional spin textures and twisted van Hove singularities
Julian Ingham, Mathias S. Scheurer, Harley D. Scammell
Motivated by the discovery of quasi-two-dimensional kagome metals AVSb, we consider the theory of twisted bilayers in which the Fermi surface is near the -point. Surpris…
Vestigial Order from an Excitonic Mother State in Kagome Superconductors VSb
Julian Ingham, Ronny Thomale, Harley D. Scammell
Alongside high-temperature charge order and superconductivity, kagome metals exhibit signatures of time-reversal symmetry breaking and nematicity which appear to depend strongly on…
Theory of Band Gap Reduction Due to Conduction Electrons in 2D TMDs: Imaginary Frequency Formalism
Jack N. Engdahl, Harley D. Scammell, Dmitry K. Efimkin +1
Two Dimensional (2D) Transition Metal Dichalcogenides (TMDs) possess a large direct band gap which has been experimentally observed to shrink with increasing charge carrier density…