Semiconductor superlattice

Given such technological possibilities, it was logical to try to apply them to the formation of a complicated heterostructure—semiconductor superlattices. 

Wade, T. L. Vaidyanathan, R. Happek, U. Stickney, J. L. 2001. Electrochemical formation of a III-V compound semiconductor superlattice InAs/InSb. J. Electroanal. Chem. 500 322-332. 

Initially, a thin layer flow cell (Fig. 19) was used in this group to study the EC ALE formation of compounds [158] and in studies of electrochemical digital etching [312,313], Wei and Rajeshwar [130] used a flow cell system to deposit compound semiconductors as well, however, the major intent of that study was to form superlattices by modulating the deposition of CdSe and ZnSe. Their study appears to be the first example of the use of a flow electrodeposition system to form a compound semiconductor superlattice. 

Intermixing. In some fabrication sequences it is desirable to cause the interdiffusion of semiconductor superlattices. This effect causes a... 

High-Field Transport in Semiconductor Superlattices By K. Leo 2003. 164 figs.,XIV, 240 pages... 

Very low pressure processes (—1.3 Pa) have also been used for the growth of single-crystalline Si at relatively low temperatures (22, 23). Low-pressure operation is also advantageous for the growth of compound-semiconductor superlattices by reducing flow recirculations and improving interface abruptness (24). 

The finite decoherence time is due to some inelastic scattering mechanism inside the system, but typically this time is shorter than the energy relaxation time re, and the distribution function of electrons inside the system can be nonequilibrium (if the finite voltage is applied), this transport regime is well known in semiconductor superlattices and quantum-cascade structures. 

Nanocomposites in the form of superlattice structures have been fabricated with metallic, " semiconductor,and ceramic materials " " for semiconductor-based devices. " The material is abruptly modulated with respect to composition and/or structure. Semiconductor superlattice devices are usually multiple quantum structures, in which nanometer-scale layers of a lower band gap material such as GaAs are sandwiched between layers of a larger band gap material such as GaAlAs. " Quantum effects such as enhanced carrier mobility (two-dimensional electron gas) and bound states in the optical absorption spectrum, and nonlinear optical effects, such as intensity-dependent refractive indices, have been observed in nanomodulated semiconductor multiple quantum wells. " Examples of devices based on these structures include fast optical switches, high electron mobility transistors, and quantum well lasers. " Room-temperature electrochemical... 

SPIN DEPENDENT WIGNER FUNCTION SIMULATIONS OF DILUTED MAGNETIC SEMICONDUCTOR SUPERLATTICES - B FIELD TUNING... 

Grubin, H.L., Diluted Magnetic Semiconductor Superlattices. Proc. SPIE, 2006. To be published. 

Chang, K., J.B. Xia, and F.M. Peelers, Longitudinal spin transport in diluted magnetic semiconductor superlattices the effect of the giant Zeeman splitting. Phys. Rev. B, 2002. 65 p. 155211-1-8. 

Pietsch, U., Investigation of a semiconductor superlattice by use of grazing incidence x-ray diffraction, Appl. Surf. Sci. 54, 502, 1992. 

Semiconductor superlattices [60] have been demonstrated to give rise to self-sustained current oscillations ranging from several hundred MHz [61,... 

J. Schlesner, A. Amann, N. B. Janson, W. Just, and E. Scholl Selfstabilization of high frequency oscillations in semiconductor superlattices by time-delay autosynchronization, Phys. Rev. E 68, 066208 (2003). 

J. Hizanidis, A. G. Balanov, A. Amann, and E. Scholl Noise-induced oscillations and their control in semiconductor superlattices, Int. J. Bifur. Chans 16, 1701 (2006). 

A. Wacker Semiconductor superlattices A model system for nonlinear transport, Phys. Rep. 357, 1 (2002). 

L. L. Bonilla Theory of nonlinear charge transport, wave propagation, and self-oscillations in semiconductor superlattices, J. Phys. Condens. Matter 14, R341 (2002). 

A. Amann, A. Wacker, L. L. Bonilla, and E. Scholl Dynamic scenarios of multi-stable switching in semiconductor superlattices, Phys. Rev. E 63, 066207 (2001). 

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