Download Physics of semiconductors in high magnetic fields by Noboru Miura PDF

By Noboru Miura

This booklet describes the elemental innovations of assorted actual phenomena in semiconductors and their modulated constructions below excessive magnetic fields. the subject conceal magneto-transport phenomena, cyclotron resonance, far-infrared spectroscopy, magneto-optical spectroscopy, diluted magnetic semiconductors in excessive magnetic fields, in addition to the new advances within the experimental recommendations wanted for prime box experiments. ranging from the introductory half describing the fundamental theoretical history, each one bankruptcy introduces common experimental information that have been really received in very excessive magnetic fields more often than not within the pulsed box variety as much as a number of megagauss (20-100T). The e-book has either the nature of a textbook and a monograph. For researchers and scholars with an curiosity in semiconductor physics or in excessive magnetic fields, it is going to function an invaluable advisor.

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14. The edge states play important roles in quantum transport in high magnetic fields, such as quantum Hall effect or magneto-tunneling effect, as will be described in the next chapter. More general cases in a highly anisotropic energy band having open orbits, as in organic conductors, were treated by Osada and Miura [39]. 1 High magnetic field effects on Bloch electrons Breakdown of effective mass theory The effective mass theory is very successful in obtaining the energy levels under magnetic fields.

This term is called the Rashba term, and causes spin splitting in the absence of magnetic field. As there is inevitably an electric field at the interface of heterostructures, spin degeneracy of two-dimensional electrons is lifted at zero field to a greater or less extent. This effect is called the Rashba effect and has attracted much interest in connection with spintronics. B. Valence band The valence band structure in quantum wells and heterostructures is fairly complicated because of the interaction between the two different valence bands which are degenerate without the quantum potential.

112) where Φ0 = h/e is the unit flux. 112) by multiplying (eB/¯h)2 . 114) ¯h Such semiclassical treatment of the electron motion is useful when considering the electron dynamics of the Fermi surface in a magnetic field. 1 Landau levels in semiconductors Two-band model The simplest approximation to treat energy bands and Landau levels in actual semiconductors within the framework of the k · p approximation is the two-band model. In this model we consider only a single conduction band and a single valence band which are faced with each other with a relatively small band gap, as shown in Fig.

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