Sikka, S. K. (2005) A high pressure distorted α-uranium (Pnma) structure in plutonium Solid State Communications, 133 (3). pp. 169-172. ISSN 0038-1098
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.ssc.2004.10.022
Abstract
Under pressure many rare earths and actinide metals transform to α-U type structure or its lower symmetry distorted forms. We have reinterpreted the diffraction data of Dabos et al. for Pu [S. Dabos et al. J. Alloys Compd. 190 (1993) 237] and find that an Am IV type distorted α-U structure in Pnma space group can explain its high pressure phase. The structures of both the high pressure Am IV type phase and α-Pu, the 0.1 MPa phase, are shown to have a distorted hcp topology. The upturn in the atomic volume of Pu at 0.1 MPa can also be rationalized on the basis of this proposal.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | A. Pu; C. Structure; D. 5f Electrons; D. Phase Transition; E. High Pressure |
| ID Code: | 67857 |
| Deposited On: | 31 Oct 2011 14:07 |
| Last Modified: | 31 Oct 2011 14:07 |
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