Effect of spin diffusion on the spin resonance in local moment systems |
| |
Authors: | Peter Wölfle |
| |
Affiliation: | 1. Max-Planck-Institut für Physik und Astrophysik, München
|
| |
Abstract: | The effect of conduction electron spin diffusion on linewidth, lineshift and residue of the spin resonance in local moment systems is investigated. For the calculation of the transverse susceptibility a previously established kinetic equation approach is used. Low temperature Kondo-type anomalies of spin relaxation and diffusion are taken into account in the framework of Suhl's theory. The susceptibility exhibits considerable structure as a function of wavevector. In particular it is shown that the magnetic resonance bottleneck is broken for sufficiently large wavevectors. The effect of relaxation proceeding to local instead of total equilibrium is investigated and shown to introduce only minor modifications with one possible exception. Application of the theory to transmission electron spin resonance (TESR) is also discussed. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |