Results 221 to 230 of about 49,129 (264)

Fractional quantum Hall effects

Physics World, 2000
Since its discovery almost two decades ago, the quantum Hall effect has been investigated by an exceptionally broad community of physicists, ranging all the way from materials scientists to topologists. Although the integer and fractional quantum Hall effects were discovered in the early 1980s, they are still the focus of a large research effort ...
Moty Heiblum, Ady Stem
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Fractional flux quantum and fractional quantum Hall effect

Physics Letters A, 1987
Abstract It is shown that the charge of a filled state is 1 2 e only. Based on this fact, a half charge and fractional flux quantum are proposed for the single particle. With this proposition contradictions among the recent theories are removed. The odd-number denominator is also explained by the half charge.
Zhen-qing Yang, Fan-mei Kong
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THE CONNECTION BETWEEN INTEGER QUANTUM HALL EFFECT AND FRACTIONAL QUANTUM HALL EFFECT

Modern Physics Letters B, 2007
We investigate the integer quantum Hall effect (IQHE) and the fractional quantum Hall effect (FQHE). We derive the quantized Hall resistance of IQHE in the presence of the high magnetic field using the scheme of standing waves by de Broglie matter wave of electron gas confined within a two-dimensional square-type quantum well. Without any modification
Koo, Je Huan, Cho, Guangsup
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Higher-order fractional quantum Hall effect

Physical Review B, 1985
The Hamiltonian describing interacting two-dimensional electrons in a high magnetic field is diagonalized numerically for a small number of particles to obtain the low-lying excitation spectra. The results include estimates of energy gaps for values of $\ensuremath{\nu}$ (the lowest-Landau-level filling factor) equal to certain multiples of $\frac{1}{5}
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Fractional quantum Hall effect revisited

Physica B: Condensed Matter, 2015
Abstract The topology-based explanation of the fractional quantum Hall effect (FQHE) is summarized. The cyclotron braid subgroups crucial for this approach are introduced in order to identify the origin of the Laughlin correlations in 2D (two-dimensional) Hall systems. Flux-tubes and vortices for composite fermions in their standard constructions are
J. Jacak, P. Łydżba, L. Jacak
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Fractional Quantum Hall Effect

1993
The fractional quantum Hall effect occurs when, in a strong magnetic field, electrons fall into highly correlated liquid states.
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Fractional Quantum Hall Effect

1991
An overview is given of the fractional quantum Hall (FQH) effect. Emphasized are recent experiments on the anomaly in transport at v = 1/2, suggestive of a new correlated ground state, the fractional charge of quasiparticles/quasiholes of the 1/3 FQH liquid, and the long anticipated transition from the incompressible FQH liquids to deformable solids.
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Fractional quantum hall effect

2007
The Fractional Quantum Hall Effect is an intriguing, new many-body phenomenon encompassing a variety of novel physics. Its strikingly new characteristics include the manifestation of fractional quantum numbers and the implied existence of fractionally-charged excitations obeying fractional statistics, all associated with the formation of a new form of ...
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Universality in the Fractional Quantum Hall effect

Nuclear Physics B - Proceedings Supplements, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fradkin, Eduardo, Lopez, Ana
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Fractional quantum Hall effect with spin reversal

Physical Review B, 1989
We study the spin polarization of the ground states and the excited states of the fractional quantum Hall effect, using spherical geometry for finite-size systems. In the absence of the Zeeman energy, the ground states at filling 2/q, with q odd, are found to be spin unpolarized and nondegenerate for all values of q studied.
Zhang, FC, Guo, Y, Xie, XC
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