3D quantum Hall effect of Fermi arcs in topological semimetals
The quantum Hall effect is usually observed in 2D systems. We show that the Fermi arcs can
give rise to a distinctive 3D quantum Hall effect in topological semimetals. Because of the …
give rise to a distinctive 3D quantum Hall effect in topological semimetals. Because of the …
High-field magnetoconductivity of topological semimetals with short-range potential
Weyl semimetals are three-dimensional topological states of matter, in a sense that they host
paired monopoles and antimonopoles of Berry curvature in momentum space, leading to the …
paired monopoles and antimonopoles of Berry curvature in momentum space, leading to the …
Hofstadter topology with real space invariants and reentrant projective symmetries
Adding magnetic flux to a band structure breaks Bloch's theorem by realizing a projective
representation of the translation group. The resulting Hofstadter spectrum encodes the …
representation of the translation group. The resulting Hofstadter spectrum encodes the …
Dual quantum spin Hall insulator by density-tuned correlations in TaIrTe4
The convergence of topology and correlations represents a highly coveted realm in the
pursuit of new quantum states of matter. Introducing electron correlations to a quantum spin …
pursuit of new quantum states of matter. Introducing electron correlations to a quantum spin …
Quantum transport in topological semimetals under magnetic fields (II)
We review our recent works on the quantum transport, mainly in topological semimetals and
also in topological insulators, organized according to the strength of the magnetic field. At …
also in topological insulators, organized according to the strength of the magnetic field. At …
Characterization of the Edge States in Colloidal Bi2Se3 Platelets
JR Moes, JF Vliem, PMMC de Melo, TC Wigmans… - Nano Letters, 2024 - ACS Publications
The remarkable development of colloidal nanocrystals with controlled dimensions and
surface chemistry has resulted in vast optoelectronic applications. But can they also form a …
surface chemistry has resulted in vast optoelectronic applications. But can they also form a …
Time-resolved counterpropagating edge transport in the topological insulating phase
We have investigated the time-resolved low-energy charge dynamics in counterpropagating
edge channels formed in the quantum Hall regime of an electron-hole bilayer system in …
edge channels formed in the quantum Hall regime of an electron-hole bilayer system in …
Colloidal nanocrystals: Viable model systems for electronic quantum materials?
The field of colloidal nanocrystals has witnessed enormous progress in the last three
decades. For many families of nanocrystals, wet-chemical syntheses have been developed …
decades. For many families of nanocrystals, wet-chemical syntheses have been developed …
Edge states and integer quantum Hall effect in topological insulator thin films
The integer quantum Hall effect is a topological state of quantum matter in two dimensions
and has recently been observed in three-dimensional topological insulator thin films. Here …
and has recently been observed in three-dimensional topological insulator thin films. Here …
Quantum Hall effect originated from helical edge states in
The recent experimental observations of the quantum Hall effect in three-dimensional (3D)
topological semimetals have attracted great attention, but there are still debates on its origin …
topological semimetals have attracted great attention, but there are still debates on its origin …