Contactless measurements of Shubnikov-de Haas oscillations in the magnetically ordered state of CeAgSb2 and SmAgSb2 single crystals

TitleContactless measurements of Shubnikov-de Haas oscillations in the magnetically ordered state of CeAgSb2 and SmAgSb2 single crystals
Publication TypeJournal Article
Year of Publication2007
AuthorsProzorov R, Vannette MD, Samolyuk GD, Law SA, Bud'ko SL, Canfield PC
Journal TitlePhysical Review B
Volume75
Pages014413
Date PublishedJan
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberISI:000243894600077
Keywordsgd, LA-ND, penetration depth, RAGSB2 R, SM, superconductors, TM
Abstract

Shubnikov-de Haas oscillations were measured in single crystals of highly metallic antiferromagnetic SmAgSb2 and ferromagnetic CeAgSb2 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 similar or equal to 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.

DOI10.1103/PhysRevB.75.014413
Alternate JournalPhys. Rev. B