de Haas-van Alphen and Shubnikov-de Haas oscillations in RAgSb2 (R = Y, La-Nd, Sm)

dc.contributor.author Myers, K. D.
dc.contributor.author Bud'ko, Sergey L.
dc.contributor.author Antropov, V. P.
dc.contributor.author Harmon, B. N.
dc.contributor.author Canfield, Paul
dc.contributor.author Lacerda, A. H.
dc.contributor.department Physics and Astronomy
dc.date.accessioned 2022-08-04T19:02:06Z
dc.date.available 2022-08-04T19:02:06Z
dc.date.issued 1999-11-15
dc.description.abstract de Haas-van Alphen and Shubnikov-de Haas oscillations have been used to study the Fermi surface of the simple tetragonal RAgSb2 series of compounds with R = Y, La-Nd, and Sm. The high quality of the flux-grown single crystals, coupled with very small extremal cross sections of Fermi surface, allow the observation of quantum oscillations at modest fields (H<30 kG) and high temperatures (up to 25 K in SmAgSb2). For H parallel to c, the effective masses, determined from the temperature dependence of the amplitudes, are quite small, typically between 0.07 and 0.5m(0). The topology of the Fermi surface was determined from the angular dependence of the frequencies for R = Y, La, and Sm. In SmAgSb2, antiferromagnetic ordering below 8.8 K is shown to dramatically alter the Fermi surface. For LaAgSb2 and CeAgSb2, the effect of applied hydrostatic pressure on the frequencies was also studied. Finally, the experimental data were compared to the Fermi surface calculated within the tight-binding linear muffin-tin orbital approximation. Overall, the calculated electronic structure was found to be consistent with the experimental data.
dc.description.comments This article is published as Myers, K. D., S. L. Bud’ko, V. P. Antropov, B. N. Harmon, P. C. Canfield, and A. H. Lacerda. "de Haas–van Alphen and Shubnikov–de Haas oscillations in R AgSb 2 (R= Y, La-Nd, Sm)." Physical Review B 60, no. 19 (1999): 13371. DOI: 10.1103/PhysRevB.60.13371. Copyright 1999 American Physical Society. Posted with permission.
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/Dw88pdmw
dc.language.iso en
dc.publisher American Physical Society
dc.source.uri https://doi.org/10.1103/PhysRevB.60.13371 *
dc.title de Haas-van Alphen and Shubnikov-de Haas oscillations in RAgSb2 (R = Y, La-Nd, Sm)
dc.type Article
dspace.entity.type Publication
relation.isAuthorOfPublication c5a8128b-7d98-4b8f-92d7-b1385e345713
relation.isOrgUnitOfPublication 4a05cd4d-8749-4cff-96b1-32eca381d930
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