Spin kinetics in Kondo lattice with heavy fermions
Abstract
We investigated the spin dynamics in the heavy fermion compounds YbRh2Si2 and YbIr2Si2. The contributions of the resonant and nonresonant parts of the total transverse magnetization to the electron spin resonance (ESR) parameters are analyzed for different orientations of the static and microwave magnetic fields. It is shown that at high temperatures, when the Kondo effect is absent, the nonresonant terms may be essential in the case of the perpendicular orientation of the static magnetic field to the crystal symmetry axis. In the presence of the Kondo effect the nonresonant parts do not make a significant contribution to the ESR parameters for any configuration of the magnetic fields.
Keywords
Supporting agencies: This work was supported by the Volkswagen Foundation (I/84689) and partially by the Ministry of Education and Science of the Russian Federation.
About the Authors
S. I. Belov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya, 18, Kazan 420008
A. S. Kutuzov
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya, 18, Kazan 420008
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Review
For citations:
Belov S.I., Kutuzov A.S. Spin kinetics in Kondo lattice with heavy fermions. Magnetic Resonance in Solids. 2012;14(1):12103 (15 pp.).
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