Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Structure and stability of γ1-AuZn2.1 : A γ-brass-related complex phase in the Au-Zn System

Koley, Biplab ; Thimmaiah, Srinivasa ; Lidin, Sven LU and Jana, Partha P. LU (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).

Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
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
  • scopus:85097578495
  • pmid:33289722
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
2024-04-04 04:49:11
@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}},
}