251 citations · 1.4k across the 28 of their papers we have counts for
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Visualizing structure of correlated ground states using collective charge modes
Michał Papaj, Guangxin Ni, Cyprian Lewandowski
The variety of correlated phenomena in moiré systems is incredibly rich, spanning effects such as superconductivity, a generalized form of ferromagnetism, or even charge fractional…
Spectroscopic signatures of excitonic order effect on quantum spin Hall edge states
Michał Papaj
One of the proposed ground states of monolayer WTe, a two-dimensional topological insulator, is an excitonic condensate. However, time-reversal preserving and breaking solution…
Breakdown of helical edge state topologically protected conductance in time-reversal-breaking excitonic insulators
Yan-Qi Wang, Michał Papaj, Joel E. Moore
Gapless helical edge modes are a hallmark of the quantum spin Hall effect. Protected by time-reversal symmetry, each edge contributes a quantized zero-temperature conductance quant…
Andreev reflection at the altermagnet-superconductor interface
Michał Papaj
Altermagnets are a new class of magnetic materials, which exhibit large spin splitting, but due to the combined spin and real space group symmetry protection maintain zero net macr…