2D Electron Gas in Non-Uniform Magnetic Fields
نویسندگان
چکیده
منابع مشابه
Non-uniform two-dimensional electron gas in a magnetic field
Basic properties of a two-dimensional electron gas with spatially varying carrier concentration in external magnetic fields are reviewed. The two main problems: modification of galvanomagnetic coefficients due to random fluctuations of equilibrium concentration and the concentration gradient created by the Lorenz force in the Hall direction — are considered for weak, classically strong, and qua...
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Introduction Magnetic fields are capable of altering the trajectory of electron beams andcan be used in radiation therapy.Theaim of this study was to produce regions with dose enhancement and reduction in the medium. Materials and Methods The NdFeB permanent magnets were arranged on the electron applicator in several configurations. Then, after the passage of the electron beams (9 and 15 MeV Va...
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We study the frequency-dependent conductivity of a nondegenerate two-dimensional electron system (2DES) in a quantizing magnetic field in the presence of weak short-range disorder. The 2DES is correlated, forming a liquid, which makes it necessary to account for electron–electron interaction (EEI) nonperturbatively. In strong magnetic fields, the low-frequency conductivity can be expressed pert...
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Noncommutativity of space coordinates has been much studied from various points of view [1-3]. It arises naturally in string theory, where it is related to the presence of strong backgrounds fields. If these are constant, one obtains the more familiar case where the coordinate noncommutativity [x, x ] is a constant antisymmetric quantity. However, if the background fields depend on the spatial ...
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introduction magnetic fields are capable of altering the trajectory of electron beams andcan be used in radiation therapy.theaim of this study was to produce regions with dose enhancement and reduction in the medium. materials and methods the ndfeb permanent magnets were arranged on the electron applicator in several configurations. then, after the passage of the electron beams (9 and 15 mev va...
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ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 2000
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.98.217