Atwal, G. S., Ashcroft, N. W. (2003) Correlation effects and the high-frequency spin susceptibility of an electron liquid: Exact limits. Physical review B. Condensed matter and materials physics, 67 (23). 233104-233104.4. ISSN 1098-0121
Abstract
Spin correlations in an interacting electron liquid are studied in the high-frequency limit and in both two and three dimensions. The third-moment sum rule is evaluated and is used to derive exact limiting forms (at both long and short wavelengths) for the spin-antisymmetric local-field factor, limω→∞G-(q,ω). In two dimensions limω→∞G-(q,ω) is found to diverge as 1/q at long wavelengths, and the spin-antisymmetric exchange-correlation kernel of time-dependent spin density functional theory diverges as 1/q2 in both two and three dimensions. These signal a failure of the local-density approximation, one that can be redressed by alternative approaches.
| Item Type: | Paper |
|---|---|
| Subjects: | physics > biophysics physics structural biology |
| CSHL Authors: | |
| Communities: | CSHL labs > Atwal lab |
| Depositing User: | Matt Covey |
| Date: | 2003 |
| Date Deposited: | 08 Jul 2013 20:38 |
| Last Modified: | 19 Dec 2016 20:58 |
| URI: | https://repository.cshl.edu/id/eprint/27845 |
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