Modak, P. ; Verma, A. K. ; Rao, R. S. ; Godwal, B. K. ; Stixrude, L. ; Jeanloz, R. (2007) Stability of the hcp phase and temperature variation of the axial ratio of iron near earth-core conditions Journal of Physics: Condensed Matter, 19 (1). 016208_1-016208_9. ISSN 0953-8984
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Official URL: http://iopscience.iop.org/0953-8984/19/1/016208
Related URL: http://dx.doi.org/10.1088/0953-8984/19/1/016208
Abstract
We theoretically document the stability of hcp iron for pressure-temperature conditions of the Earth's inner core by separately computing the electronic and phonon contributions to the free energy. These pseudopotential-based quasi-harmonic calculations reveal that the hcp phase remains stable compared to bcc and that the c/a ratio of lattice parameters exhibits only a modest temperature dependence at inner-core conditions.
Item Type: | Article |
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Source: | Copyright of this article belongs to Institute of Physics Publishing. |
ID Code: | 11938 |
Deposited On: | 13 Nov 2010 13:32 |
Last Modified: | 16 May 2016 21:21 |
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