Structure and stability of γ1-AuZn2.1 : A γ-brass-related complex phase in the Au-Zn System
(2020) In Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials 76. p.1109-1116- Abstract
γ1-AuZn2.1 in the Au-Zn binary system has been synthesized and its structure analyzed by single-crystal X-ray diffraction. It crystallizes in the trigonal space group P31m (No. 157) with ∼227 atoms per unit cell and represents a 3a × 3a × c superstructure of rhombohedrally distorted γ-Au5-x Zn8+y. The structure is largely tetrahedrally closed packed. The formation of γ1-AuZn2.1 can be understood within the framework of a Hume-Rothery stabilization mechanism with a valence electron concentration of 1.68 e/a (valence electrons per atom).
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- author
- Koley, Biplab ; Thimmaiah, Srinivasa ; Lidin, Sven LU and Jana, Partha P. LU
- organization
- publishing date
- 2020-12
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Hume-Rothery stabilization, Pierce cluster, single-crystal X-ray diffraction, superstructure, γ-brass phase
- in
- Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
- volume
- 76
- pages
- 8 pages
- publisher
- Wiley-Blackwell
- external identifiers
-
- pmid:33289722
- scopus:85097578495
- ISSN
- 2052-5192
- DOI
- 10.1107/S205252062001327X
- language
- English
- LU publication?
- yes
- id
- 7690484d-9788-40d0-a5e6-aeb2780813dd
- date added to LUP
- 2022-04-01 14:57:02
- date last changed
- 2024-09-19 21:12:32
@article{7690484d-9788-40d0-a5e6-aeb2780813dd, abstract = {{<p>γ1-AuZn2.1 in the Au-Zn binary system has been synthesized and its structure analyzed by single-crystal X-ray diffraction. It crystallizes in the trigonal space group P31m (No. 157) with ∼227 atoms per unit cell and represents a 3a × 3a × c superstructure of rhombohedrally distorted γ-Au5-x Zn8+y. The structure is largely tetrahedrally closed packed. The formation of γ1-AuZn2.1 can be understood within the framework of a Hume-Rothery stabilization mechanism with a valence electron concentration of 1.68 e/a (valence electrons per atom). </p>}}, author = {{Koley, Biplab and Thimmaiah, Srinivasa and Lidin, Sven and Jana, Partha P.}}, issn = {{2052-5192}}, keywords = {{Hume-Rothery stabilization; Pierce cluster; single-crystal X-ray diffraction; superstructure; γ-brass phase}}, language = {{eng}}, pages = {{1109--1116}}, publisher = {{Wiley-Blackwell}}, series = {{Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials}}, title = {{Structure and stability of γ1-AuZn2.1 : A γ-brass-related complex phase in the Au-Zn System}}, url = {{http://dx.doi.org/10.1107/S205252062001327X}}, doi = {{10.1107/S205252062001327X}}, volume = {{76}}, year = {{2020}}, }