superlattice
1
9.8
- noun
- /ˈsuːpərˌlætɪs/
- Specialized
:
superred
- In a typical superlattice, alternating layers of different materials create a complex repeating pattern that enhances its optical properties.
- GaAs-AlAs superlattices
- semiconductor superlattices
- quantum wells and superlattices
Examples
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GaAs technology had grown out of early efforts by Esaki and Raphael Tsu to make superlattices and the development of molecular-beam epitaxy.
Academic text (1993) -
Once the field has completely destroyed the coupling, the superlattice behaves as a set of independent quantum wells.
Academic text (1994) -
As a superlattice, taken at a temperature of 5 K. At very low fields, the spectra are similar.
Academic text (1994) -
The scheme is, in principle, applicable to emitters with a superlattice in the active region of the device.
Academic text (1994) -
In a superlattice, the frequency of the emitted radiation should be proportional to the electric field.
Academic text (1994) -
Another open question is the feasibility of the emission of electromagnetic radiation in finite superlattices.
Academic text (1994) -
As an example, we have plotted in Figure 6 the peaks of the complete photocurrent spectra for the superlattice in Figure 5b.
Academic text (1994) -
In sharp contrast, in semiconductor superlattices, for which the superperiod is typically 50-100, that spacing is an order of magnitude larger.
Academic text (1994) -
In addition to the structural periodicity that results from the multiple repetition of the double-well structure, the formation of a superlattice in the electronic sense requires that the electronic envelope wavefunctions be coherent throughout the entire heterostructure.
Academic text (1994) -
Anticrossing, mixing, and field-induced delocalization—phenomena essential to transport along the growth axis—have already been observed in GaAs-AlAs superlattices.
Academic text (1994)
Synonyms
A larger repeating block of atoms used to model a crystal structure
How Complex
Surface Forms
Morphology
Etymology
Superlattice combines super- meaning 'above' or 'beyond', as in supermarket, and lattice, which is a 'grid' or 'network' like a garden lattice. So a superlattice is a 'bigger' repeating grid made by putting thin layers of different materials on top of each other.