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Origin of the asymmetric spinodal decomposition in the Al-Zn system
KTH, Superseded Departments, Materials Science and Engineering.ORCID iD: 0000-0002-9920-5393
KTH, Superseded Departments, Materials Science and Engineering.
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2001 (English)In: Physical Review B Condensed Matter, ISSN 0163-1829, E-ISSN 1095-3795, Vol. 64, no 2, 201011-201014 p.Article in journal (Refereed) Published
Abstract [en]

The Fermi surface and the phase equilibria in the Al-Zn system are studied theoretically in the framework of the density-functional theory, linear muffin-tin orbital method, and the Green's function technique. Analyzing the Fermi surfaces of the random alloys, we find a series of electronic topological transitions within the stability range of the fcc solid solution. A relation between these transitions and the phase stabilities of fee Al-Zn is established. We show that the asymmetry of the miscibility gap as well as of the mixing energy are due to the electronic topological transitions in the system.

Place, publisher, year, edition, pages
2001. Vol. 64, no 2, 201011-201014 p.
Keyword [en]
random metallic alloys, electronic-structure, energy, approximation, phases
National Category
Condensed Matter Physics Metallurgy and Metallic Materials
URN: urn:nbn:se:kth:diva-20787DOI: 10.1103/PhysRevB.64.020101ISI: 000169835700001OAI: diva2:339484
QC 20100525 QC 20120208 NR 20140804Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2012-02-13Bibliographically approved

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Korzhavyi, Pavel A.Johansson, Börje
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