Benoît Fauqué et al 2009 New J. Phys. 11 113012 doi:10.1088/1367-2630/11/11/113012
Electronic instability in bismuth far beyond the quantum limit
Benoît Fauqué1, Baptiste Vignolle2, Cyril Proust2, Jean-Paul Issi3 and Kamran Behnia1
Show affiliationsWe present a transport study of semi-metallic bismuth in the presence of a magnetic field applied along the trigonal axis extended to 55 T for electric conductivity and to 45 T for thermoelectric response. The results uncover a new field scale at about 40 T in addition to the previously detected ones. Large anomalies in all transport properties point to an intriguing electronic instability deep in the ultraquantum regime. Unexpectedly, both the sheer magnitude of conductivity and its metallic temperature dependence are enhanced by this instability.
- PACS
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72.15.Jf Thermoelectric and thermomagnetic effects
72.15.Eb Electrical and thermal conduction in crystalline metals and alloys
- Subjects
- Dates
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Issue 11 (November 2009)
Received 16 October 2009
Published 6 November 2009
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Electronic instability in bismuth far beyond the quantum limit
Benoît Fauqué et al 2009 New J. Phys. 11 113012
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