Lowitzer, Stephan ; Koedderitzsch, Diemo ; Ebert, Hubert ; Tulip, P. R. ; Marmodoro, A. ; Staunton, J. B.
Alternative Links zum Volltext:DOI
| Dokumentenart: | Artikel |
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| Titel eines Journals oder einer Zeitschrift: | Europhysics Letters |
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| Verlag: | EDP Sciences |
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| Band: | 92 |
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| Nummer des Zeitschriftenheftes oder des Kapitels: | 3 |
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| Seitenbereich: | S. 37009 |
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| Datum: | 29 November 2010 |
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| Institutionen: | Nicht ausgewählt |
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| Identifikationsnummer: | | Wert | Typ |
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| 10.1209/0295-5075/92/37009 | DOI |
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| Klassifikation: | | Notation | Art |
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| 72.15.Eb | PACS | | 72.10.-d | PACS | | 71.20.Be | PACS |
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| Dewey-Dezimal-Klassifikation: | 500 Naturwissenschaften und Mathematik > 530 Physik |
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| Status: | Veröffentlicht |
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| Begutachtet: | Ja, diese Version wurde begutachtet |
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| An der Universität Regensburg entstanden: | Nein |
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| Dokumenten-ID: | 19681 |
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Zusammenfassung
For a class of transition metal materials residual resistivity is observed to decrease when the materials are deformed and short-range order is removed. We investigate this counter-intuitive behavior with an ab initio theoretical study of the residual resistivity of several late transition metal-rich disordered alloys. The calculations are performed using the Korringa-Kohn-Rostoker (KKR) method ...
Zusammenfassung
For a class of transition metal materials residual resistivity is observed to decrease when the materials are deformed and short-range order is removed. We investigate this counter-intuitive behavior with an ab initio theoretical study of the residual resistivity of several late transition metal-rich disordered alloys. The calculations are performed using the Korringa-Kohn-Rostoker (KKR) method applied to the Kubo-Greenwood formalism. The electronic effects arising from short-range ordering and clustering within the disorder are described using the non-local coherent-potential approximation (NL-CPA). We find a simple, general explanation of this K-state–like effect in terms of changes to the amplitude for d-electron hopping between majority late transition metal nearest-neighbor atoms at the Fermi energy.
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