5 papers
Reducing non-linear effects in Kelvin Probe Force Microscopy of back-gated 2D semiconductors
Zander Scholl, Ezra Frohlich, Natalie Rogers +6
In 2D field effect transistors the gate electrostatically dopes the 2D semiconductor (2DSC) channel, tuning the Fermi level. In principle, Kelvin probe force microscopy (KPFM) can…
Magnetochiral anisotropy on a quantum spin Hall edge
Youjian Chen, Gary Quaresima, Wenjin Zhao +3
We develop a theory of nonlinear low-magnetic-field magnetotransport on a helical edge of a quantum spin Hall insulator due to the edge state coupling to bulk midgap states. We foc…
Elastocaloric signature of the excitonic instability in TaNiSe
Elliott Rosenberg, Joss Ayres-Sims, Andrew Millis +2
On cooling through a temperature of around 324 K, TaNiSe undergoes a transition from a semimetallic state to one with a gapped electronic spectrum which is suspected…
Observation of High-Temperature Dissipationless Fractional Chern Insulator
Heonjoon Park, Weijie Li, Chaowei Hu +13
The fractional quantum anomalous Hall effect has recently been experimentally observed in zero-field fractional Chern insulators (FCI). However, an outstanding challenge is the pre…
Ferromagnetism and Topology of the Higher Flat Band in a Fractional Chern Insulator
Heonjoon Park, Jiaqi Cai, Eric Anderson +18
The recent observation of the fractional quantum anomalous Hall effect in moiré fractional Chern insulators provides an opportunity to investigate zero magnetic field anyons. To p…