By Professor Eougenious L. Ivchenko, Professor Grigory Pikus (auth.)
ISBN-10: 3642975895
ISBN-13: 9783642975899
ISBN-10: 3642975917
ISBN-13: 9783642975912
Superlattices and different Heterostructures offers with the optical houses of superlattices and quantum good buildings with emphasis on phenomena ruled by way of crystal symmetries. After a quick advent to workforce idea and symmetries, tools for calculating spectra of electrons, excitons, and phonons in heterostructures are discussed.
Further chapters disguise absorption and mirrored image of sunshine less than interband transitions, cyclotron and electron spin-resonance, gentle scattering by way of unfastened and sure providers in addition to through optical and acoustic phonons, polarized photoluminescence, optical spin orientation of electrons and excitons, and nonlinear optical and photogalvanic results.
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Additional info for Superlattices and Other Heterostructures: Symmetry and Optical Phenomena
Sample text
24c and 26) coincide. One should not, however, overestimate the validity of this conclusion since, as already pointed out, near an abrupt heterojunction a substantial contribution to the total 1/1 function may come from states of higher lying bands. The deformation-potential method provides the possibility of including, within the effective-mass approximation, the effect of deformations, both static, which result in a change of the spectrum, and time-variable ones produced by long-wavelength lattice vibrations, both natural and excited by an external perturbation.
2 The Effective-Mass Method; Defonnation Potential 43 components is sufficient, since the third component will vanish with a high probability at one of the points on the axis, whereas on a fixed plane, identical vanishing of one of the components will suffice. If the basis functions 1/InKo transform according to the representation D~, then the matrix elements pIn, will form the basis for the representation D = D(I D~ 12. 5, with DK = D(, and f = -I. 13) x((g) gECKo and does not depend on the representation D~o.
Brillouin zones for cubic lattices a simple cubic lattice, b body-centered reciprocal latice. c face-centered reciprocal lattice corresponding elements of the space group (rllr), together with translations (and their products (rl1" + form a wave vector group. The other elements of the direction group rl send k into other inequivalent points of the Brillouin zone, k i . All these points ki' together with k make up a star of the wave vector k, denoted by {k}. , the number of the linearly independent wave functions 1frk.
Superlattices and Other Heterostructures: Symmetry and Optical Phenomena by Professor Eougenious L. Ivchenko, Professor Grigory Pikus (auth.)
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