Contact-less measurements of Shubnikov-de Haas oscillations in the magnetically ordered state of CeAgSb${}_2$ and SmAgSb${}_2$ single crystals

Abstract

Shubnikov - de Haas oscillations were measured in single crystals of highly metallic antiferromagnetic SmAgSb${}_2$ and ferromagnetic CeAgSb${}_2$ using a tunnel diode resonator. Resistivity oscillations as a function of applied magnetic field were observed via measurements of skin depth variation. The effective resolution of $\Delta \rho \simeq 20$ p$\Omega$ allows a detailed study of the SdH spectra as a function of temperature. The effects of the Sm long - range magnetic ordering as well as its electronic structure ($4f$-electrons) on the Fermi surface topology is discussed.

References in corpus (1)

• Fermiology and superconductivity studies on the non-tetrachalcogenafulvalene structured organic superconductor beta-(BDA-TTP)_2SbF_6

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