60 citations · 186 across the 11 of their papers we have counts for
11 papers
Signatures of Green's function zeros and their topology using impurity spectroscopy
Sayan Mitra, Fang Xie, Marek Kolmer +2
Topology without quasiparticles has emerged as a key framework for understanding Mott insulators, where Green's-function zeros encode nontrivial topological structure. Yet, experim…
Defect-induced displacement of topological surface state in quantum magnet MnBiTe
Felix Lüpke, Marek Kolmer, Hengxin Tan +6
The topological magnet MnBiTe (MBT), with gapped topological surface state, is an attractive platform for realizing quantum anomalous Hall and Axion insulator states. Howev…
Strain-modulated Intercalated Phases of Pb Monolayer with Dual Periodicity in SiC(0001)-Graphene Interface
Lin-Lin Wang, Shen Chen, Marek Kolmer +2
Intercalation of metal atoms at the SiC(0001)-graphene (Gr) interface can provide confined 2D metal layers with interesting properties. The intercalated Pb monolayer (ML) has shown…
Anti-site defect-induced disorder in compensated topological magnet MnBiSbTe
Felix Lüpke, Marek Kolmer, Jiaqiang Yan +5
The gapped Dirac-like surface states of compensated magnetic topological insulator MnBiSbTe (MBST) are a promising host for exotic quantum phenomena such as the qua…
Unusual flat and extended morphology of intercalated Cu under MoS2
Dapeng Jing, Yong Han, James W. Evans +3
A general method was developed to intercalate metals under layered materials through a controlled density of sputtered defects. The method has been already applied to study a range…
Local manifestations of thickness dependent topology and axion edge state in topological magnet MnBiTe
Felix Lüpke, Anh D. Pham, Yi-Fan Zhao +9
The interplay of non-trivial band topology and magnetism gives rise to a series of exotic quantum phenomena, such as the emergent quantum anomalous Hall (QAH) effect and topologica…
Realizing gapped surface states in magnetic topological insulator MnBiSbTe
Wonhee Ko, Marek Kolmer, Jiaqiang Yan +7
The interplay between magnetism and non-trivial topology in magnetic topological insulators (MTI) is expected to give rise to a variety of exotic topological quantum phenomena, suc…
Confinement Heteroepitaxy: Realizing Atomically Thin, Half-van der Waals Materials
Natalie Briggs, Brian Bersch, Yuanxi Wang +16
Three-dimensional epitaxial heterostructures are based on covalently-bonded interfaces, whereas those from 2-dimensional (2D) materials exhibit van der Waals interactions. Under th…
Atomic-scale manipulation and in situ characterization with scanning tunneling microscopy
Wonhee Ko, Chuanxu Ma, Giang D. Nguyen +2
Scanning tunneling microscope (STM) has presented a revolutionary methodology to the nanoscience and nanotechnology. It enables imaging the topography of surfaces, mapping the dist…
Edge states and ballistic transport in zig-zag graphene ribbons: the role of SiC polytypes
A. L. Miettinen, M. S. Nevius, W. Ko +8
Zig-zag edge graphene ribbons grown on 6H-SiC facets are ballistic conductors. It has been assumed that zig-zag graphene ribbons grown on 4H-SiC would also be ballistic. However, i…
Fermi level pinning at the Ge(001) surface - A case for non-standard explanation
Mateusz Wojtaszek, Rafal Zuzak, Szymon Godlewski +4
To explore the origin of the Fermi level pinning in germanium we investigate the Ge(001) and Ge(001):H surfaces. The absence of relevant surface states in the case of Ge(001):H sho…