3 papers
cond-mat.mes-hall2023
Time-Reversal Invariant Topological Moiré Flatband: A Platform for the Fractional Quantum Spin Hall Effect
Yi-Ming Wu, Daniel Shaffer, Zhengzhi Wu +1
Motivated by recent observation of the quantum spin Hall effect in monolayer germanene and twisted bilayer transition-metal-dichalcogenides (TMDs), we study the topological phases…
cond-mat.supr-con2021
Theory of Hofstadter Superconductors
Daniel Shaffer, Jian Wang, Luiz H. Santos
We study mean-field states resulting from the pairing of electrons in time-reversal broken fractal Hofstadter bands, which arise in two-dimensional lattices where the unit cell tra…
cond-mat.str-el2019
Crystalline Nodal Topological Superconductivity and Bogolyubov Fermi Surfaces in Monolayer NbSe
Daniel Shaffer, Jian Kang, F. J. Burnell +1
We present a microscopic calculation of the phase diagram of the Ising superconductor NbSe in presence of both in-plane magnetic field and Rashba spin-orbit coupling (SOC). R…