https://doi.org/10.1140/epjb/e2012-30360-3
Regular Article
ESR of a magnetic impurity in a host with interconfiguration fluctuations
Departamento de Física,UFAM, Av. Rodrigo Otavio 3000-Japiim, 69077-000
Manaus, AM, Brazil
a
e-mail: angsula@ufam.edu.br
Received: 3 May 2012
Received in final form: 5 June 2012
Published online: 12 September 2012
The electron spin resonance of a magnetic probe is considered in the interconfiguration-fluctuation host (ICF). The spin relaxation rate of a well-defined magnetic probe in the presence of the Coulomb interaction although satisfies the Korringa relation at low temperatures presents a minimum with a rise in temperature. The transition from the magnetic state to the non-magnetic state is also characterized by a minimum in the relaxation rate. The low temperature behavior of the relaxation rate with the distance between the magnetic probe and ICF ions is substantially lower than that of a pure metal.
Key words: Solid State and Materials
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2012
