Anisotropic electron spin resonance of YbIr2Si2

Abstract

A series of electron spin resonance (ESR) experiments were performed on a single crystal of the heavy fermion metal YbIr2Si2 to map out the anisotropy of the ESR-intensity I_ESR which is governed by the microwave field component of the g-factor. The temperature dependencies of I_ESR(T) and g(T) were measured for different orientations and compared within the range 2.6K \le T \le 16K. The analysis of the intensity dependence on the crystal orientation with respect to both the direction of the microwave field and the static magnetic field revealed remarkable features: The intensity variation with respect to the direction of the microwave field was found to be one order of magnitude smaller than expected from the g-factor anisotropy. Furthermore, we observed a weak basal plane anisotropy of the ESR parameters which we interpret to be an intrinsic sample property.

10 pages, 5 figures

References in corpus (6)

• Electron spin resonance in Kondo systems
• Phenomenology of ESR in heavy fermion systems: Fermi liquid and non-Fermi liquid regime
• Why could Electron Spin Resonance be observed in a heavy fermion Kondo lattice?
• Magnetic susceptibility of YbRh2Si2 and YbIr2Si2 on the basis of a localized 4f electron approach
• ESR of YbRh2Si2 and 174YbRh2Si2 : local and itinerant properties
• Spin dynamics of $YbR{h}_{2}S{i}_2$ observed by Electron Spin Resonance

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• Electron Spin Resonance of the ferromagnetic Kondo lattice CeRuPO
• Electron spin resonance study on the 4f honeycomb quantum magnet YbCl3
• Anisotropic Zeeman Splitting in YbNi4P2