| Autor: |
Ermolaev, A.M., Rashba, G.I. |
| Předmět: |
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| Zdroj: |
Low Temperature Physics; Nov2003, Vol. 29 Issue 11, p945-953, 9p |
| Abstrakt: |
A study is made of the changes in on the phonon spectrum and damping in a conductor in a quantizing magnetic field under the joint influence of quasilocal vibrations of impurity atoms in the lattice and magnetoimpurity electron states at those atoms. A system of equations for the electron and ion Green’s function is obtained on the basis an electron–ion model of a nonideal conductor in a magnetic field with the quasilocal vibrations and the magnetoimpurity states taken into account. At a low concentration of impurity atoms the magnetoimpurity states give resonance contributions to the polarization operator. They have a substantial influence on the phonon spectrum and damping. The magnetoimpurity states cause a crossover splitting of the phonon dispersion curves and give rise to new branches in the spectrum of elastic vibrations. © 2003 American Institute of Physics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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