Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2006-05-22
Phys. Rev. B 75, 014413 (2007)
Physics
Condensed Matter
Strongly Correlated Electrons
Scientific paper
10.1103/PhysRevB.75.014413
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 $\Delta\rho\simeq20$ 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.
Bud'ko Sergey L.
Canfield Paul. C.
Law Stephanie A.
Prozorov Ruslan
Samolyuk German D.
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