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26 April 2024

» arxiv » arxiv.0706.2387

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Fermi surface of CeIn3 above the Neel critical field
N. Harrison ; S. E. Sebastian ; C. H. Mielke ; A. Paris ; M. J. Gordon ; C. A. Swenson ; D. G. Rickel ; M. D. Pacheco ; P. F. Ruminer ; J. B. Schillig ; J. R. Sims ; A. H. Lacerda ; M. T. Suzuki ; H. Harima ; T. Ebihara ;
Date:	16 Jun 2007
Abstract:	We report measurements of the de Haas-van Alphen effect in CeIn3 in magnetic fields extending to ~90 T, well above the Ne’el critical field of Hc ~61 T. The unreconstructed Fermi surface a-sheet is observed in the high magnetic field polarized paramagnetic limit, but with its effective mass and Fermi surface volume strongly reduced in size compared to that observed in the low magnetic field paramagnetic regime under pressure. The spheroidal topology of this sheet provides an ideal realization of the transformation from a `large Fermi surface’ accommodating f-electrons to a `small Fermi surface’ when the f-electron moments become polarized.
Source:	arXiv, arxiv.0706.2387
Other source:	[GID 1103248] pmid17930772
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