Zobrazeno 1 - 10
of 45
pro vyhledávání: '"M.H. LYONS"'
Autor:
M.A.Z. Rejman-Greene, M.H. Lyons, S.J. Amin, P.J. Skevington, Graham J. Davies, M. A. G. Halliwell
Publikováno v:
Journal of Crystal Growth. 120:328-332
InP/InGaAs multiple quantum well structures with up to 200 periods have been grown by CBE. These structures exhibit exceptional lateral uniformity, measured as ±1 A in period, ±13 ppm in lattice mismatch and ±0.5 nm in wavelength across a 2 inch w
Publikováno v:
Journal of Crystal Growth. 105:249-253
InGaAs/InP multi-quantum well layers, suitable for use as quantum confined Stark effect modulators, have been grown by gas source MBE. Detailed analysis of interface perfection has been obtained by multiple crystal X-ray diffraction techniques and lo
Publikováno v:
Proceedings of GLOBECOM '93. IEEE Global Telecommunications Conference.
We outline two working environments which exploit the enormous band-width potential of future telecommunications systems and overcome many of the difficulties experienced with current teleworking systems. >
Publikováno v:
Journal of Crystal Growth. 68:523-531
A recently developed computational method has been used to calculate X-ray double crystal rocking curves from hetero-epitaxial layers. The importance of quantitative interpretation of diffraction data is demonstrated. 004 CuKα 1 rocking curves from
Publikováno v:
Journal of Crystal Growth. 45:150-158
Although the III-V compounds and their alloys are increasingly important in the ever widening range of electronic and electro- optic devices, fundamental thermodynamic and chemical kinetic data for the chemical transport reactions used for their prep
Autor:
M.H. Lyons
Publikováno v:
Journal of Crystal Growth. 96:339-347
The importance of sharp interfaces in semiconductor hetero-structures has long been recognized. In this paper, a simple growth model, appropriate to gas-phase epitaxy, is used to deduce how composition, lattice parameter, electron structure factor an
Publikováno v:
Journal of Applied Crystallography. 18:446-451
Synchrotron radiation has been used to obtain double-crystal X-ray rocking curves from inhomogeneous layers of GaInAs on InP at a range of wavelengths. The consistency of the lattice-parameter profiles deduced by simulating the rocking curves using t
Publikováno v:
Journal of Crystal Growth. 66:269-288
A vapour phase method for the growth of mixed III–V compounds is described; the method differs from the hydride technique in that the group V elements are introduced as the trichlorides. The factors affecting the control of layer composition are di
Publikováno v:
Journal of Crystal Growth. 46:21-30
The modified entrainment method is a simple and revealing means of investigating potential chemical vapour transport systems, and in favourable cases may provide thermochemical data for the reactions. In this paper we extend the theory underlying the
Publikováno v:
Scopus-Elsevier
A translation and tilting stage for a double axis X-ray diffractometer is described. It permits rocking curves to be recorded automatically at specified positions on the specimen. Experimental procedures and control programs are discussed. Examples a