Zobrazeno 1 - 10
of 40
pro vyhledávání: '"R. L. Barns"'
Publikováno v:
Materials Science and Engineering: B. 6:29-32
High quality single crystals of semi-insulating InP were grown by the electrodynamic gradient freeze technique. The material is co-doped with the shallow acceptor zinc and the deep donor titanium. Resistivities in the 105−106 Ω cm range were measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d0771df929556a5dd923b224e4d6133
https://doi.org/10.1016/0921-5107(90)90110-w
https://doi.org/10.1016/0921-5107(90)90110-w
Publikováno v:
Journal of Electronic Materials. 18:549-552
High qualityp-type InP is critical for devices ranging from high power injection lasers to space-based solar cells. The growth of 50 mm diameter, low defect density,p-type, Zn:InP substrates has been achieved for the first time at doping levels below
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ca383620199f13885ed28c30e520c0b
https://doi.org/10.1007/bf02657787
https://doi.org/10.1007/bf02657787
Autor:
R. L. Barns
Publikováno v:
Journal of Electronic Materials. 18:703-710
A very simple method for imaging the shape of the growth interface in InP crystals using infra-red sensitive film has been developed. Images of large samples (several square inches) are obtained which show high resolution (better than 25 microns) and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db1b7a3740aa616a700c1cd26f6a0403
https://doi.org/10.1007/bf02657522
https://doi.org/10.1007/bf02657522
Publikováno v:
Journal of Applied Physics. 51:4379-4384
The absolute orientation of the cleavage plane is determined and is related to standard rectangular coordinates. The electro‐optic coefficients appropriate to the cleavage orientation are then calculated and measured in Ti:LiNbO3 waveguides. Additi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0e74da573fc7aff5fdfc0243b010785
https://doi.org/10.1063/1.328301
https://doi.org/10.1063/1.328301
Autor:
D. H. Smith, J. W. Nielsen, R. L. Barns, G. P. Vella‐Coleiro, S.L. Blank, F.B. Hagedorn, W. A. Biolsi
Publikováno v:
Journal of Electronic Materials. 3:693-707
The choice of magnetic garnet compositions for bubble memories is always a compromise dictated by the material requirements generated by the specifications on the memories. The three compositions reported, Y2.62Smo.38Fe3.85Ga1.15O12, Gd2.lLuO.9Fe4.4A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::319907c810f9ca3a39282abc8f931e2c
https://doi.org/10.1007/bf02655293
https://doi.org/10.1007/bf02655293
Autor:
R. L. Barns
Publikováno v:
Advances in X-ray Analysis. 15:330-338
All published accounts of the use of Bond's method for lattice parameter measurements have used step-scanning (at equal angle increments) of the diffraction peaks, followed by graphical or computer analysis of the data to locate the peak positions. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62b640281c6dd1538a3a6e154a9bd6b0
https://doi.org/10.1154/s0376030800011022
https://doi.org/10.1154/s0376030800011022
Whisker Crystals of Gallium Arsenide and Gallium Phosphide Grown by the Vapor—Liquid—Solid Mechanism
Autor:
R. L. Barns, W. C. Ellis
Publikováno v:
Journal of Applied Physics. 36:2296-2301
GaAs and GaP whisker crystals have been grown by the vapor—liquid—solid mechanism of crystal growth. Gold, palladium, platinum, and gallium have been used to produce the required liquid layer. The system employing wet hydrogen developed by Frosch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68e037cc55474eb99443d64d7465e870
https://doi.org/10.1063/1.1714466
https://doi.org/10.1063/1.1714466
Publikováno v:
Journal of Applied Physics. 35:1183-1186
A spectrophotometric method for determining the concentration of chromium in oriented and unoriented single ruby crystals is described. It makes use of the absorption coefficients for the blue and green bands and for the red lines at ∼300°K. The c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f229563e71d3693f43eb486713dd8fb1
https://doi.org/10.1063/1.1713590
https://doi.org/10.1063/1.1713590
Publikováno v:
Ferroelectrics. 4:291-297
Mg-Cl-Boracite, Mg3B7013Cl, transforms from a piezoelectric cubic phase to a slightly orthorhombically-distorted ferroelectric-ferroelastic phase at Tc = 541°K, represented by IIPP(43m)Fc.Fc.P(mm2). The orthorhombic phase is highly twinned, due to d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b04dba40cab2866bd737492d6ef53c86
https://doi.org/10.1080/00150197308235770
https://doi.org/10.1080/00150197308235770
Publikováno v:
Journal of Applied Crystallography. 3:27-32
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6fe49aebbce34b4448488499d41d2ad
https://doi.org/10.1107/s0021889870005599
https://doi.org/10.1107/s0021889870005599