Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Andrew Richard Lang"'
Weak-beam electron microscopy has been applied to study the dissociation of dislocations in a type II a diamond. Dislocations with Burgers vector ½[11̅0] on (111) glide planes have been found to be dissociated into two Shockley partials, with separ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96d5dbffbb390fc445ffc3837e34f956
https://ora.ox.ac.uk/objects/uuid:521396ea-06b6-4168-a990-848765166c0d
https://ora.ox.ac.uk/objects/uuid:521396ea-06b6-4168-a990-848765166c0d
Publikováno v:
Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences. 458:2623-2643
Synchrotron X–ray reticulography measures lattice–plane orientation variations point by point on the crystal with microradian resolution capability. A fine–scale X–ray–absorbing mesh placed close to the crystal in the back–reflected diffr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86b3a1722f110cab2de8b25b4656ab79
https://doi.org/10.1098/rspa.2002.0998
https://doi.org/10.1098/rspa.2002.0998
Publikováno v:
Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences. 458:2485-2521
A method is described for analysing strain in a plate–shaped crystal divided into growth sectors differing in lattice parameter and joined together at coherent dislocation–free sector boundaries running between the surfaces of the plate. The spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31dc73f2d7df9e1c193491c150dd855b
https://doi.org/10.1098/rspa.2002.0988
https://doi.org/10.1098/rspa.2002.0988
Publikováno v:
Journal of Applied Crystallography. 28:690-699
A combination of low-resolution and high-resolution techniques was applied to establish the composition, crystallography and distribution of small inclusions, average diameters ~1 μm, dispersed within large synthetic diamonds. Both metallic and sili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a94ccd4c32dbd94d249b571e6650d82c
https://doi.org/10.1107/s0021889895007370
https://doi.org/10.1107/s0021889895007370
Publikováno v:
Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences. 449:555-566
Certain crystallite populations in microwave plasma CVD-grown diamond films contain large octahedral grains oriented with [001] normal to the film and topped by (001) facets several tens of micrometres in edge length. These facets show characteristic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70d76e51582e8cc5b5577ef8418517fa
https://doi.org/10.1098/rspa.1995.0058
https://doi.org/10.1098/rspa.1995.0058
Publikováno v:
Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences. 442:161-175
Possible magnetization states of a cubic ferromagnetic crystal having easy magnetization directions parallel to the cube axes (as in Fe + 3 mass % Si alloy) can be represented using a regular octahedron, as first shown by Néel. This model is develop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3e17db6d0d63e1e3f03c8f1dbea2aee
https://doi.org/10.1098/rspa.1993.0097
https://doi.org/10.1098/rspa.1993.0097
Autor:
Andrew Richard Lang
Publikováno v:
Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences. 340:233-248
Certain rare diamonds have had epochs of growth during which they were bounded by two surface forms: normal {111} facets together with non-flat surfaces of mean {100} orientation (‘cuboid’ surfaces). Differences of lattice imperfection content
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8faac31ed402ca658a2c8afbffaecba
https://doi.org/10.1098/rspa.1974.0150
https://doi.org/10.1098/rspa.1974.0150
Autor:
Andrew Richard Lang, S. S. Jiang
Publikováno v:
Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences. 388:249-271
Stacking fault fringe patterns and related dynamical diffraction effects have been studied by X-ray section topographs in the case of a fault about 1mm 2 in area contained in an unusually perfect and almost dislocation-free type Ia natural diamond cu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13b9a93e4ebfa5bb3c42dcf9bbb5e356
https://doi.org/10.1098/rspa.1983.0082
https://doi.org/10.1098/rspa.1983.0082
Publikováno v:
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences. 321:361-401
In natural diamonds of optical classification type la , nitrogen is the major identified impurity and is distributed mainly in point defects known as A defects (probably a pair of nitrogen atoms substituting for a pair of adjacent carbon atoms) and B
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a57f3d532dbde0ff0579c626ac381a04
https://doi.org/10.1098/rsta.1987.0018
https://doi.org/10.1098/rsta.1987.0018
Autor:
Mai Zhen-Hong, Andrew Richard Lang
Publikováno v:
Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences. 368:313-329
The dynamical theory of X-ray diffraction by perfect crystals applied to Bragg-case reflexion of a spatially narrow beam of coherent spherical waves at a crystal surface predicts that the spatial intensity distribution of the reflected beam contains
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6683093dc3cde35879ed045fb90a4e5
https://doi.org/10.1098/rspa.1979.0132
https://doi.org/10.1098/rspa.1979.0132