Sharma, S. M. ; Sikka, S. K. (1984) Many-body enhancement of positron annihilation in metals: the choice of electron density parameter rs Journal of Physics F: Metal Physics, 14 (4). pp. 873-877. ISSN 0305-4608
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Official URL: http://iopscience.iop.org/0305-4608/14/4/011
Related URL: http://dx.doi.org/10.1088/0305-4608/14/4/011
Abstract
It is shown that the choice of electron density parameter rs, based on the electron density in the interstitial region, leads to a universal correlation between annihilation rate ( lambda ) and rs for all metals, known previously only for simple (sp) metals. This new choice of rs also gives a lower momentum dependence of the enhancement factor in Cu, as is required by experiment.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| ID Code: | 48208 |
| Deposited On: | 13 Jul 2011 14:20 |
| Last Modified: | 12 Jul 2012 07:51 |
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