Published December 2, 2005
| Version v1
Journal article
Competition between Order and Phase Separation in Au-Ni
Creators
- 1. Max-Planck-Institut fuer Metallforschung, Heisenbergstrasse 3, D-70569 Stuttgart (Germany)
- 2. Universitaet Stuttgart, Institut fuer Theoretische und Angewandte Physik, D-70569 Stuttgart (Germany)
- 3. Northwestern University, Evanston, Illinois 60208 (United States)
- 4. Department of Materials, University of Oxford, Oxford OX1 3PH (United Kingdom)
- 5. European Synchrotron Radiation Facility, F-38043 Grenoble (France)
Description
We have measured and theoretically analyzed the diffuse scattering in the binary alloy system Au-Ni, which has been proposed as a testing ground for theories of alloy phase stability. We found strong evidence that in the alloys Au3Ni and Au3Ni2, fluctuations of both ordering- and clustering-type are competing with each other. Our results resolve a long-standing controversy on the balance of relaxation and mixing energies in this alloy system and explain recent findings of ordering in thin Au-Ni films
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 95
- Journal Issue
- 23
- Journal Page Range
- p. 235703-235703.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37015661
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BINARY ALLOY SYSTEMS; DIFFUSE SCATTERING; GOLD ALLOYS; NICKEL ALLOYS; ORDER-DISORDER TRANSFORMATIONS; PHASE STABILITY; X-RAY DIFFRACTION
- Descriptors DEC
- ALLOY SYSTEMS; ALLOYS; COHERENT SCATTERING; DIFFRACTION; PHASE TRANSFORMATIONS; SCATTERING; STABILITY; TRANSITION ELEMENT ALLOYS
Optional Information
- Notes
- (c) 2005 The American Physical Society