Determination of the Fermi Surface of MgB${}_2$ by the de Haas-van Alphen effect

Abstract

We report measurements of the de Haas-van Alphen effect for single crystals of MgB${}_2$, in magnetic fields up to 32 Tesla. In contrast to our earlier work, dHvA orbits from all four sheets of the Fermi surface were detected. Our results are in good overall agreement with calculations of the electronic structure and the electron-phonon mass enhancements of the various orbits, but there are some small quantitative discrepancies. In particular, systematic differences in the relative volumes of the Fermi surface sheets and the magnitudes of the electron-phonon coupling constants could be large enough to affect detailed calculations of T${}_c$ and other superconducting properties.

4 pages, 2 column with figures

References in corpus (9)

• Superconductivity of metallic boron in MgB_2
• Beyond Eliashberg superconductivity in MgB2: anharmonicity, two-phonon scattering, and multiple gaps
• First-Principles Calculation of the Superconducting Transition in MgB2 within the Anisotropic Eliashberg Formalism
• Two-gap superconductivity in MgB${}_2$: clean or dirty?
• Electronic structure of MgB${}_2$ from angle-resolved photoemission spectroscopy
• de Haas-van Alphen effect in single crystal MgB_2
• Fermi Surfaces of Diborides: MgB2 and ZrB2
• Interpretation of the de Haas - van Alphen experiments in MgB2
• Energy bandstructures of MgB2 and the related compounds

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