Results 221 to 230 of about 161,881 (244)
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Physical Review B, 1975
A calculation is given of the equilibrium properties of a two-dimensional Fermi gas at 0 \ifmmode^\circ\else\textdegree\fi{}K. The ladder diagrams for the self-energy are summed, corresponding to a low-density expansion. We obtain the Fermi energy, the quasiparticle lifetime, the effective mass, the ground-state energy, and the discontinuity at the ...
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A calculation is given of the equilibrium properties of a two-dimensional Fermi gas at 0 \ifmmode^\circ\else\textdegree\fi{}K. The ladder diagrams for the self-energy are summed, corresponding to a low-density expansion. We obtain the Fermi energy, the quasiparticle lifetime, the effective mass, the ground-state energy, and the discontinuity at the ...
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Fortschritte der Physik/Progress of Physics, 1992
Identical impenetrable particles in a 2-dimensional configuration space obey braid statistics, intermediate between bosons and fermions. This statistics, based on braid groups, is introduced as a generalization of the usual statistics founded on the symmetric groups. The main properties of an ideal gas of such particles are presented.
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Identical impenetrable particles in a 2-dimensional configuration space obey braid statistics, intermediate between bosons and fermions. This statistics, based on braid groups, is introduced as a generalization of the usual statistics founded on the symmetric groups. The main properties of an ideal gas of such particles are presented.
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2020
In dieser Arbeit wird die mikroskopische Struktur von delgasen – beschränkt auf zwei Dimensionen– untersucht. Dazu wurde mehrlagiges Graphen mit Edelgasen bestrahlt, was zur implantation dieser Gase zwischen den Graphenlagen führte.
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In dieser Arbeit wird die mikroskopische Struktur von delgasen – beschränkt auf zwei Dimensionen– untersucht. Dazu wurde mehrlagiges Graphen mit Edelgasen bestrahlt, was zur implantation dieser Gase zwischen den Graphenlagen führte.
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Tunneling between a two-dimensional electron gas and a two-dimensional hole gas
Journal of Applied Physics, 1992Using tunneling probabilities from two-band model calculations, interband tunneling from a two-dimensional electron gas to a two-dimensional hole gas is examined. The tunneling current is found, both in the direct and in the indirect case, to decrease inversely with the lifetime τr of states occupied in the two-dimensional hole gas by tunneling.
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Magnetization of a two-dimensional electron gas
Physical Review B, 1990The magnetic-field dependence of the oscillation amplitude of the magnetization of the two-dimensional electron gas is studied both analytically and numerically. A closed analytical expression for the envelope of the magnetization oscillations is obtained in the limit of sharp Landau levels.
, Jauregui, , Marchenko, , Vagner
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Two-dimensional two-state lattice-gas model
Physical Review E, 2005We propose a two-dimensional lattice-gas (2D LG) model where atoms may be in two different states: the immobile state, in which they jump as usual in the LG model, and the running state, in which the atoms always jump in the driving direction. The model demonstrates a typical behavior of "traffic-jam" models: the system splits into domains of immobile ...
O M, Braun, Bambi, Hu
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Journal of High Resolution Chromatography, 2000
The writer of this review published in 1978 a three-part article on two-dimensional gas chromatography in the first three issues of this journal [1]. The review was written at a time when capillary column GC was still in its infancy. Commercial columns were (essentially) unavailable and sample introduction into capillary columns was done exclusively in
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The writer of this review published in 1978 a three-part article on two-dimensional gas chromatography in the first three issues of this journal [1]. The review was written at a time when capillary column GC was still in its infancy. Commercial columns were (essentially) unavailable and sample introduction into capillary columns was done exclusively in
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Piston Problems of Two-Dimensional Chaplygin Gas
Chinese Annals of Mathematics, Series B, 2019The authors consider the spatially two-dimensional piston problem for the isentropic Chaplygin gas. The piston is sharp, with straight edges (an angle) and slip boundary condition on the edges. The velocity of the piston is constant. Initial data are scaling-invariant. By the self-similarity transformation, the system is reduced to a 2D system.
Chen, Shuxing, Qu, Aifang
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Comprehensive two-dimensional gas chromatography in metabolomics
Analytical and Bioanalytical Chemistry, 2012One of the major objectives in metabolomics is the identification of subtle changes in metabolite profiles as affected by genetic or environmental factors. Comprehensive two-dimensional gas chromatography (GC × GC) hyphenated to a fast-acquisition mass spectrometer is a well-established analytical technique to study the composition of complex samples ...
Martin F, Almstetter +2 more
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Two-Dimensional Surface Electron Gas
2009The simplest metal-insulator-semiconductor device structure, shown in Fig. 4.1, includes a metal gate, an insulator layer on a semiconductor surface, and a back metal ohmic contact. t ox is the thickness of insulator and eox is its dielectric constant. The insulator layer lies between the metal gate and the top semiconductor surface.
Junhao Chu, Arden Sher
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