Results 61 to 70 of about 19,211 (303)
Advanced Functional Materials, EarlyView.The highly anisotropic Fermi surface of bismuth results in variations in magnetotransport properties across different crystallographic directions, which can be characterized by studying microcrystals. To avoid the observed surface melting under room temperature Focused Ion Beam (FIB) irradiation, two low‐temperature FIB fabrication methods are proposed
Amaia Sáenz‐Hernández +6 more
wiley +1 more source
Quantum spin Hall phase in 2D trigonal lattice
Nature Communications, 2016 Whilst different models describing the two-dimensional quantum spin Hall effect exist, very few experimental systems have been realized in which to test theory.
Z. F. Wang, Kyung-Hwan Jin, Feng Liu
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Higher (odd) dimensional quantum Hall effect and extended dimensional hierarchy
Nuclear Physics B, 2017 We demonstrate dimensional ladder of higher dimensional quantum Hall effects by exploiting quantum Hall effects on arbitrary odd dimensional spheres.
Kazuki Hasebe
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Quantum Anomalous Layer Hall Effect in the Topological Magnet MnBi2Te4 [PDF]
, 2022 Wenbo Dai +4 more
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Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, EarlyView.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
wiley +1 more source
Thermally stable quantum Hall effect in a gated ferroelectric-graphene heterostructure
Communications Physics, 2023 The quantum Hall effect is widely used for the investigation of fundamental phenomena, ranging from topological phases to composite fermions. In particular, the discovery of a room temperature resistance quantum in graphene is significant for compact ...
Anubhab Dey +12 more
doaj +1 more source
Dynamical competition between quantum Hall and quantum spin Hall effects [PDF]
Physical Review B, 2014 In this paper we investigate the occurrence of quantum phase transitions in topological systems out of equi- librium. More specifically, we consider graphene with a sizable spin-orbit coupling, irradiated by circularly- polarized light. In the absence of light, the spin-orbit coupling drives a quantum spin Hall phase where edge currents with opposite ...
Quelle, Anton, Smith, Cristiane Morais
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Advanced Functional Materials, EarlyView.Trap state engineering in inverted organic photodetectors (OPDs) is achieved via combined layer‐by‐layer (LbL) processing and poly(N‐vinylcarbazole) (PVK) incorporation. LbL reduces the trap density while PVK additives gradually shift trap states from shallow band‐edge to deep mid‐gap levels, tailoring the energy distribution.
Jingwei Yi +10 more
wiley +1 more source
Large oscillatory thermal hall effect in kagome metals
Nature CommunicationsThe thermal Hall effect recently provided intriguing probes to the ground state of exotic quantum matters. These observations of transverse thermal Hall signals lead to the debate on the fermionic versus bosonic origins of these phenomena.
Dechen Zhang +11 more
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Curvature-induced quantum spin-Hall effect on a Möbius strip [PDF]
, 2022 Kyriakos Flouris +2 more
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