Anisotropic electron spin resonance of Y bIr₂Si

Anisotropic electron spin resonance of Y bIr₂Si

A series of electron spin resonance (ESR) experiments were performed on a single crystal of the heavy fermion metal Y bIr₂Si₂ 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) w...

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Veröffentlicht in:Journal of physics. Condensed matter 2010-04, Vol.22 (13), p.135602-135602
Hauptverfasser: Gruner, T, Wykhoff, J, Sichelschmidt, J, Krellner, C, Geibel, C, Steglich, F
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container_issue 13
container_start_page 135602
container_title Journal of physics. Condensed matter
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creator Gruner, T
Wykhoff, J
Sichelschmidt, J
Krellner, C
Geibel, C
Steglich, F
description A series of electron spin resonance (ESR) experiments were performed on a single crystal of the heavy fermion metal Y bIr₂Si₂ 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 2.6 K ≤ T ≤ 16 K. 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.
doi_str_mv 10.1088/0953-8984/22/13/135602
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