Observation of lattice defects in single crystals of diacetylene (PTS) by X-ray topography

The defects in single crystals of diacetylene (PTS) are studied by X-ray topography (Lang's method). Three types of isolated dislocations are observed and two kinds of Burgers vectors are determined. The first is the dislocation with the Burgers vector [001] and the slip plane (100), which has...

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Veröffentlicht in:	Japanese Journal of Applied Physics 1984-01, Vol.23 (9), p.L752-L754
Hauptverfasser:	KONDO, M, MATSUSHITA, M, IZUMI, K, ISHIZAWA, A
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: structure, mechanical and thermal properties Defects and impurities in crystals microstructure Direct observation of dislocations and other defects (etch pits, decoration, electron microscopy, x-ray topography, etc.) Exact sciences and technology Physics Structure of solids and liquids crystallography
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Zusammenfassung:	The defects in single crystals of diacetylene (PTS) are studied by X-ray topography (Lang's method). Three types of isolated dislocations are observed and two kinds of Burgers vectors are determined. The first is the dislocation with the Burgers vector [001] and the slip plane (100), which has the straight part, which is the pure edge part. The second is the dislocation with the Burgers vector [211]. The third is the dislocation which is perpendicular to (100). In addition, the bundle of pure screw dislocations with the Burgers vector [010] and the planar defect are observed.
ISSN:	0021-4922 1347-4065
DOI:	10.1143/jjap.23.l752