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| Titel |
Saturation of conductivity by pressure and light elements in iron alloys |
| VerfasserIn |
Matthieu Verstraete, Razvan Caracas, Stephane Labrosse, John Hernlund, Kei Hirose |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250078897
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| Zusammenfassung |
| We compute the electrical conductivity of iron and iron alloys at Earth’s core conditions and beyond from electron-phonon coupling in the ABINIT implementation. We find an excellent agreement with experimental results for pure hcp iron below 1 mbars. We confidently use our results up to core pressure conditions.
We specifically look at saturation effects of the conductivity. The pressure shows a clear effect, with an asymptotic behavior to values of the core in excess of 90 W/K/m. We treat in detail the effect of Si and H on hcp iron and show a marked saturation effect, an increase in anisotropy and a strong dependence with the substitution pattern. |
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