Parallel magnetoresistance of a polycrystalline bismuth film in high magnetic fields

Ralph Rosenbaum; Jean Galibert

doi:10.1016/j.physb.2004.01.092

Parallel magnetoresistance of a polycrystalline bismuth film in high magnetic fields

Ralph Rosenbaum^*, Jean Galibert

^*Corresponding author for this work

School of Physics and Astronomy

Lab. Natl. Champs Magnetiques Pulses

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

Magnetoresistance (MR) ratios r = R(B)/R(0) have been measured in parallel fields on a polycrystalline heat-treated bismuth film at different temperatures. MR ratios vs. B's exhibit "maximums" followed by decreases, described by a B^-1 law. Electron Fermi energies have been extracted. The MR data are explained using a Landau tube "sweeping" model and a MR expression of Pippard and of Fawcett. There is a second maximum in the MR ratios at 38 T followed by a second decrease. This second decrease could arise from the "sweeping" of the next lowest Landau tubes outside the Fermi surface of the single hole pocket.

Original language	English
Pages (from-to)	291-295
Number of pages	5
Journal	Physica B: Condensed Matter
Volume	346-347
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physb.2004.01.092
State	Published - 30 Apr 2004
Event	Proceedings of the 7th International Symposium on Research - Toulouse, France Duration: 20 Jul 2003 → 23 Jul 2003

Keywords

Bismuth films
Electronic transport in parallel magnetic fields
Magnetoresistance

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10.1016/j.physb.2004.01.092

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abstract = "Magnetoresistance (MR) ratios r = R(B)/R(0) have been measured in parallel fields on a polycrystalline heat-treated bismuth film at different temperatures. MR ratios vs. B's exhibit {"}maximums{"} followed by decreases, described by a B-1 law. Electron Fermi energies have been extracted. The MR data are explained using a Landau tube {"}sweeping{"} model and a MR expression of Pippard and of Fawcett. There is a second maximum in the MR ratios at 38 T followed by a second decrease. This second decrease could arise from the {"}sweeping{"} of the next lowest Landau tubes outside the Fermi surface of the single hole pocket.",

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AU - Galibert, Jean

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N2 - Magnetoresistance (MR) ratios r = R(B)/R(0) have been measured in parallel fields on a polycrystalline heat-treated bismuth film at different temperatures. MR ratios vs. B's exhibit "maximums" followed by decreases, described by a B-1 law. Electron Fermi energies have been extracted. The MR data are explained using a Landau tube "sweeping" model and a MR expression of Pippard and of Fawcett. There is a second maximum in the MR ratios at 38 T followed by a second decrease. This second decrease could arise from the "sweeping" of the next lowest Landau tubes outside the Fermi surface of the single hole pocket.

AB - Magnetoresistance (MR) ratios r = R(B)/R(0) have been measured in parallel fields on a polycrystalline heat-treated bismuth film at different temperatures. MR ratios vs. B's exhibit "maximums" followed by decreases, described by a B-1 law. Electron Fermi energies have been extracted. The MR data are explained using a Landau tube "sweeping" model and a MR expression of Pippard and of Fawcett. There is a second maximum in the MR ratios at 38 T followed by a second decrease. This second decrease could arise from the "sweeping" of the next lowest Landau tubes outside the Fermi surface of the single hole pocket.

KW - Bismuth films

KW - Electronic transport in parallel magnetic fields

KW - Magnetoresistance

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T2 - Proceedings of the 7th International Symposium on Research

Y2 - 20 July 2003 through 23 July 2003

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Parallel magnetoresistance of a polycrystalline bismuth film in high magnetic fields

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