26 papers · ranked by Valyu relevance
Cui‐Zu Chang, Jinsong Zhang, Xiao Feng, Jie Shen + 19 more
'Minghua Guo' 'Kang Li' 'Yunbo Ou' 'P. Wei' 'Li-Li Wang' 'Zhong-Qing Ji' 'Yang Feng' 'Shuai‐Hua Ji' 'Xi Chen' 'Jinfeng Jia' 'Xi Dai' 'Zhong Fang' 'Shou-Cheng Zhang' 'Ke He' 'Yayu Wang' 'Li Lü' 'Xu-Cun Ma' 'Qi-Kun Xue'] Cui-Zu Chang,1,2† Jinsong Zhang,1 † Xiao Feng,1,2† Jie Shen,2 † Zuocheng Zhang,1 Minghua Guo,1 Kang…
Cui‐Zu Chang, Chao‐Xing Liu, A. H. MacDonald
The quantum Hall (QH) effect, quantized Hall resistance combined with zero longitudinal resistance, is the characteristic experimental fingerprint of Chern insulators - topologically non-trivial states of two-dimensional matter with broken time-reversal symmetry. In Chern insulators, non-trivial bulk band topology is…
F. D. Parmentier, T. Cazimajou, Y. Sekine, H. Hibino + 4 more
'D. C. Glattli' 'N. Kumada' 'P. Roulleau'] We have observed the well-kown quantum Hall effect (QHE) in epitaxial graphene grown on silicon carbide (SiC) by using, for the first time, only commercial NdFeB permanent magnets at low temperature. The relatively large and homogeneous magnetic field generated by the magnets…
Hai-Zhou Lu
The discovery of the quantum Hall effect in 2D systems opens the door to topological phases of matter. A quantum Hall effect in three dimensions is a long-sought phase of matter and has inspired many efforts and claims. In this perspective, we review our proposal that guarantees a 3D quantum Hall effect. The proposal…
Siyu Zhou, Mengjian Zhu, Qiang Liu, Yang Xiao + 3 more
'Chucai Guo' 'Jean-Pierre Bucher'] Since the discovery of the quantum Hall effect in 1980, it has attracted intense interest in condensed matter physics and has led to a new type of metrological standard by utilizing the resistance quantum. Graphene, a true two-dimensional electron gas material, has demonstrated the…
Hai-Zhou Lu
The discovery of the quantum Hall effect in 2D systems opens the door to topological phases of matter. A quantum Hall effect in 3D is a long-sought phase of matter and has inspired many efforts and claims. In the perspective, we review our proposal that guarantees a 3D quantum Hall effect. The proposal employs the…
Börge Göbel, Ingrid Mertig
The quantum Hall effect emerges when two-dimensional samples are subjected to strong magnetic fields at low temperatures: Topologically protected edge states cause a quantized Hall conductivity in multiples of e 2 /h. Here we show that the quantum Hall effect is accompanied by an orbital Hall effect. Our quantum…
R. Wawrzyńczak, S. Galeski, J. Noky, Y. Sun + 2 more
The quasi-quantized Hall effect (QQHE) is the three-dimensional (3D) counterpart of the integer quantum Hall effect (QHE), exhibited only by two-dimensional (2D) electron systems. It has recently been observed in layered materials, consisting of stacks of weakly coupled 2D platelets that are yet characterized by a 3D…
Hideo Aoki
Integer quantum Hall effect, which is the Hall effect quantized into integer times $e^2/h$ ($e$: elementary charge, $h$: Planck's constant) observed first in two-dimensional electron gases in strong magnetic fields, is reviewed from both theoretical and experimental standpoints. Basic physics underlying the phenomenon…
Xin Liu, Hsiu-Chuan Hsu, Chao‐Xing Liu
In a two-dimensional electron gas, the quantized Hall conductance can be induced by a strong magnetic field, known as the quantum Hall effect, and it can also result from the strong exchange coupling of magnetic ions, dubbed as the "quantum anomalous Hall effect". The quantum Hall effect requires the out-of-plane…
Avi Karsenty
A comprehensive review of the main existing devices, based on the classic and new related Hall Effects is hereby presented. The review is divided into sub-categories presenting existing macro-, micro-, nanoscales, and quantum-based components and circuitry applications. Since Hall Effect-based devices use current and…
S. Galeski, X. Zhao, R. Wawrzyńczak, T. Meng + 13 more
'P. M. Lozano' 'S. Honnali' 'N. Lamba' 'T. Ehmcke' 'A. Markou' 'Q. Li.' 'G. Gu' 'W. Zhu' 'J. Wosnitza' 'C. Felser' 'G. F. Chen' 'J. Gooth'] Interacting electrons confined to their lowest Landau level in a high magnetic field can form a variety of correlated states, some of which manifest themselves in a Hall effect.…
E. M. Kendirlik, S. Sirt, S. B. Kalkan, W. Dietsche + 3 more
'S. Ludwig' 'A. Siddiki'] In this work we report on experiments performed on smooth edge-narrow Hall bars. The magneto-transport properties of intermediate mobility two-dimensional electron systems are investigated and analyzed within the screening theory of the integer quantized Hall effect. We observe a non-monotonic…
M. A. Hidalgo
We present a theoretical framework to describe the integer quantum Hall effect (IQHE) in three-dimensional (3D) electron systems. This extends our previous single-electron approach, which was successfully applied to two-dimensional (2D) systems such as semiconductor quantum wells and graphene, where it provided…
Jongbae Hong
The fractional quantum Hall effect (FQHE) has been considered as a puzzling quantum manybody phenomenon that has yet to be fully explained. The experimentally measured Hall resistivity curve must be clarified based on quasiparticle energy gaps, and therefore, revealing the relation between plateau widths and energy…
Michael Sabatini Mattei, Boyuan Liu, Gerardo A. Mazzei Capote, Zijie Liu + 3 more
Photonic topological insulators have emerged as an exciting new platform for backscatter-free waveguiding even in the presence of defects, with applications in robust long-range energy and quantum information transfer, low-threshold lasing, and chiral quantum optics. We demonstrate a design for spin-Hall photonic…
Michael Toriyama, G. Jeffrey Snyder
Band inversion is a physical phenomenon which may cause warping of the bulk band structure in topological insulators, generating multiple electronic valleys for conducting carriers. However, the conditions under which band inversion induces warping are not well understood. Here, we derive two general conditions which…
Bartosz Krajnik, Monika Maciejewska, Stanisław Janeczko, Andrzej Szczurek
The queen bee is the central individual responsible for colony establishment, growth, and survival. Reliable confirmation of successful mating, continued queen presence, and normal reproductive performance is essential for effective colony management. We present a queen bee detection system based on an array of…
Alexandra Siklitskaya, Tomasz Bednarek, James Pogrebetsky, Adam Kubas
Friedel oscillations are quantum mechanical phenomena observed as oscillatory variations in electron density due to the presence of impurity or defect in a media containing electron gas. FOs profoundly influence surface properties, including the ordering of adsorbates and surface-mediated interactions crucial for…
Ning Cao, William Bro-Jørgensen, Xiaohong Zheng, Gemma Solomon
Quantum interference effects in conjugated molecules have been well explored, with benzene frequently invoked as a pedagogical example. These interference effects have been understood through a quantum interference map in which the electronic transmission is separated into interfering and non-interfering terms, with a…
Marco Vitek, Jie-Ren Deng, Harry L. Anderson, Igor Rončević
The ability of a ring-shaped molecule to sustain a global ring current, when placed in a magnetic field, indicates that its electronic wavefunction is coherently delocalized around its whole circumference. Large molecules that display this behavior are attractive components for molecular electronic devices because it…
Authors not listed
Zig-zag graphene nanoribbons (ZGNRs) exhibit symmetric spin distributions on their edges, making them susceptible to perturbations due to molecular adsorption. This study investigates the impact of adsorption of closed-shell (e.g. N2, CO, CO2) and open-shell paramagnetic (e.g. O2, NO, NO2) molecules on the…
Alan Tai
This study presents a quantum well model using transfer matrix to analyse the charge transfer characteristic in DNA nanostructure sequences. The unconfined state or unbound state above the quantum well are used to investigate the carrier behaviours in nanostructure of semiconductor. Similar analysis and simulations can…
Takeshi Yasuda, Nakako Nakajima, Tomoko Yanaka, Takaya Gotoh + 3 more
Quantum tunneling is a phenomenon in which small quantum particles pass through a reaction energy barrier, as if they were passing through a tunnel opened in the barrier. In this study, we analyzed the involvement of the quantum tunneling effect in enzymatic chemical reactions involving hydrolysis in vitro, by…
Gabriel Abrahams, Vincent Spreng, Ana Štuhec, Idris Kempf + 10 more
Quantum mechanical phenomena have been identified as fundamentally significant to an increasing number of biological processes. Simultaneously, quantum sensing is emerging as a cutting-edge technology for precision biosensing. However, biological based candidates for quantum-sensors have thus far been limited to in…
Jean-Marc Guarini, Jennifer Coston-Guarini, Luc A. Comeau
Hall-Effect valvometry (HES) is being used to describe bivalve valve gape variations and infer environmental perturbations in a variety of aquatic environments. Surprisingly, the published calibrations in ecological literature ignore both the electromagnetic properties of HES and that the valves rotate around their…