Electron diffraction and high resolution electron microscopic study of ordering in the gold—manganese system. II. The monoclinic II structure in Au11 Mn4 and its relation to other LPAPB phases
1
Rijksuniversitair Centrum Antwerpen
Publication type: Journal Article
Publication date: 1978-07-16
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Abstract
The existence of a second type of long periodic antiphase boundary structures in the Au11Mn4 alloy is evidenced and analysed by high resolution electron microscopy and electron diffraction techniques. The crystallographic model for the structure and formation of this monoclinic II phase reveals a very close analogy with the structure and the formation of crystallographic shear structures in oxide phases, where changes in spacing and orientation of the non-conservative defects (APB) accommodate changes in stoichiometry. The transition between the different LPAPB structures in this alloy from orthorhombic to monoclinic I to monoclinic II can be explained by the propagation of hairpin configurations of the non-conservative antiphase boundaries. Also the formation of Au5Mn2 and Au4Mn from the Au3Mn(DO22)-phase can be considered as occurring by a crystallographic shear transformation.
Die Existenz eines zweiten Typs von langperiodischer Antiphasengrenzenstruktur in der Au11Mn4-Legierung wird nachgewiesen und mit hochauflosender Elektronenmikroskopie und Elektronenbeugung analysiert. Das kristallographische Modell fur die Struktur und Bildung dieser monoklinen II-Phase zeigt eine sehr enge Analogie mit der Struktur und der Bildung von kristallographischen Scherstrukturen in Oxidphasen, wobei Anderungen im Abstand und in der Orientierung der nichtkonservativen Defekte (APB) Anderungen in der Stochiometrie begleiten. Der Ubergang zwischen den verschiedenen LPAPB-Strukturen in dieser Legierung von rhombisch zu monoklin I zu monoklin II kann durch die Wanderung von „hairpin”-Konfigurationen der nichtkonservativen Antiphasengrenzen erklart werden. Auch die Bildung von Au5Mn2 und Au4Mn aus der Au3Mn(DO22)-Phase kann als Auftreten einer kristallographischen Schertransformation betrachtet werden.
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Wolf R. et al. Electron diffraction and high resolution electron microscopic study of ordering in the gold—manganese system. II. The monoclinic II structure in Au11Mn4 and its relation to other LPAPB phases // phys stat sol (a). 1978. Vol. 48. No. 1. pp. 39-52.
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Wolf R., Van Tendeloo G., Van Landuyt J., Amelinckx S. Electron diffraction and high resolution electron microscopic study of ordering in the gold—manganese system. II. The monoclinic II structure in Au11Mn4 and its relation to other LPAPB phases // phys stat sol (a). 1978. Vol. 48. No. 1. pp. 39-52.
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TY - JOUR
DO - 10.1002/pssa.2210480106
UR - https://doi.org/10.1002/pssa.2210480106
TI - Electron diffraction and high resolution electron microscopic study of ordering in the gold—manganese system. II. The monoclinic II structure in Au11Mn4 and its relation to other LPAPB phases
T2 - phys stat sol (a)
AU - Wolf, R.
AU - Van Tendeloo, G.
AU - Van Landuyt, J.
AU - Amelinckx, S.
PY - 1978
DA - 1978/07/16
PB - Wiley
SP - 39-52
IS - 1
VL - 48
SN - 0031-8965
SN - 1521-396X
ER -
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BibTex (up to 50 authors)
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@article{1978_Wolf,
author = {R. Wolf and G. Van Tendeloo and J. Van Landuyt and S. Amelinckx},
title = {Electron diffraction and high resolution electron microscopic study of ordering in the gold—manganese system. II. The monoclinic II structure in Au11Mn4 and its relation to other LPAPB phases},
journal = {phys stat sol (a)},
year = {1978},
volume = {48},
publisher = {Wiley},
month = {jul},
url = {https://doi.org/10.1002/pssa.2210480106},
number = {1},
pages = {39--52},
doi = {10.1002/pssa.2210480106}
}
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MLA
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Wolf, R., et al. “Electron diffraction and high resolution electron microscopic study of ordering in the gold—manganese system. II. The monoclinic II structure in Au11Mn4 and its relation to other LPAPB phases.” phys stat sol (a), vol. 48, no. 1, Jul. 1978, pp. 39-52. https://doi.org/10.1002/pssa.2210480106.