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Hall effect

About: Hall effect is a(n) research topic. Over the lifetime, 17467 publication(s) have been published within this topic receiving 399490 citation(s).

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Papers
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Open accessJournal ArticleDOI: 10.1126/SCIENCE.1102896
Kostya S. Novoselov1, Andre K. Geim1, Sergey V. Morozov, Da Jiang1  +4 moreInstitutions (1)
22 Oct 2004-Science
Abstract: We describe monocrystalline graphitic films, which are a few atoms thick but are nonetheless stable under ambient conditions, metallic, and of remarkably high quality. The films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands, and they exhibit a strong ambipolar electric field effect such that electrons and holes in concentrations up to 10 13 per square centimeter and with room-temperature mobilities of ∼10,000 square centimeters per volt-second can be induced by applying gate voltage.

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Topics: Carbon film (57%), Hall effect (55%), Ambipolar diffusion (54%) ...read more

48,846 Citations


Open accessJournal ArticleDOI: 10.1103/PHYSREVLETT.45.494
Abstract: Measurements of the Hall voltage of a two-dimensional electron gas, realized with a silicon metal-oxide-semiconductor field-effect transistor, show that the Hall resistance at particular, experimentally well-defined surface carrier concentrations has fixed values which depend only on the fine-structure constant and speed of light, and is insensitive to the geometry of the device. Preliminary data are reported.

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Topics: Quantum Hall effect (66%), Quantum spin Hall effect (62%), Quantum anomalous Hall effect (61%) ...read more

4,931 Citations


Open accessJournal ArticleDOI: 10.1103/PHYSREVLETT.108.196802
Di Xiao1, Gui-Bin Liu2, Wanxiang Feng3, Wanxiang Feng4  +3 moreInstitutions (5)
Abstract: We show that inversion symmetry breaking together with spin-orbit coupling leads to coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides, making possible controls of spin and valley in these 2D materials The spin-valley coupling at the valence-band edges suppresses spin and valley relaxation, as flip of each index alone is forbidden by the valley-contrasting spin splitting Valley Hall and spin Hall effects coexist in both electron-doped and hole-doped systems Optical interband transitions have frequency-dependent polarization selection rules which allow selective photoexcitation of carriers with various combination of valley and spin indices Photoinduced spin Hall and valley Hall effects can generate long lived spin and valley accumulations on sample boundaries The physics discussed here provides a route towards the integration of valleytronics and spintronics in multivalley materials with strong spin-orbit coupling and inversion symmetry breaking

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Topics: Spin Hall effect (67%), Quantum spin Hall effect (65%), Spin polarization (65%) ...read more

3,284 Citations


Open accessJournal ArticleDOI: 10.1126/SCIENCE.1234414
Cui-Zu Chang1, Cui-Zu Chang2, Jinsong Zhang2, Xiao Feng1  +21 moreInstitutions (3)
12 Apr 2013-Science
Abstract: The quantized version of the anomalous Hall effect has been predicted to occur in magnetic topological insulators, but the experimental realization has been challenging. Here, we report the observation of the quantum anomalous Hall (QAH) effect in thin films of chromium-doped (Bi,Sb)2Te3, a magnetic topological insulator. At zero magnetic field, the gate-tuned anomalous Hall resistance reaches the predicted quantized value of h/e2, accompanied by a considerable drop in the longitudinal resistance. Under a strong magnetic field, the longitudinal resistance vanishes, whereas the Hall resistance remains at the quantized value. The realization of the QAH effect may lead to the development of low-power-consumption electronics.

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Topics: Quantum anomalous Hall effect (74%), Quantum Hall effect (69%), Quantum spin Hall effect (66%) ...read more

2,273 Citations


Open accessJournal ArticleDOI: 10.1103/PHYSREVLETT.83.1834
J. E. Hirsch1Institutions (1)
Abstract: It is proposed that when a charge current circulates in a paramagnetic metal a transverse spin imbalance will be generated, giving rise to a ``spin Hall voltage.'' Similarly, it is proposed that when a spin current circulates a transverse charge imbalance will be generated, giving rise to a Hall voltage, in the absence of charge current and magnetic field. Based on these principles we propose an experiment to generate and detect a spin current in a paramagnetic metal.

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Topics: Spin Hall effect (68%), Quantum spin Hall effect (64%), Spin polarization (61%) ...read more

2,090 Citations


Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20227
2021498
2020576
2019540
2018520
2017501

Top Attributes

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Topic's top 5 most impactful authors

Yuji Aoki

35 papers, 313 citations

Claudia Felser

30 papers, 1.8K citations

Masashi Kawasaki

29 papers, 2.4K citations

V. A. Kulbachinskii

29 papers, 266 citations

Hideyuki Sato

28 papers, 144 citations

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