| Autor: |
Shvaika AM; Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii Street, 79011 Lviv, Ukraine., Vorobyov O, Freericks JK, Devereaux TP |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2004 Sep 24; Vol. 93 (13), pp. 137402. Date of Electronic Publication: 2004 Sep 21. |
| DOI: |
10.1103/PhysRevLett.93.137402 |
| Abstrakt: |
We use dynamical mean field theory to find an exact solution for inelastic light scattering in strongly correlated materials such as those near a quantum-critical metal-insulator transition. We evaluate the results for q=0 (Raman) scattering and find that resonant effects can be quite large, and yield a double resonance, a significant enhancement of nonresonant scattering peaks, a joint resonance of both peaks when the incident photon frequency is on the order of U, and the appearance of an isosbestic point in all symmetry channels for an intermediate range of incident photon frequencies. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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