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  • Title: Study of the Fermi surface of ZrB12 using the de Haas-van Alphen effect.
    Author: Gasparov VA, Sheikin I, Levy F, Teyssier J, Santi G.
    Journal: Phys Rev Lett; 2008 Aug 29; 101(9):097006. PubMed ID: 18851644.
    Abstract:
    The de Haas-van Alphen (dHvA) effect in the cluster superconductor ZrB12 was studied by magnetic torque measurements in magnetic fields up to 28 T at temperatures down to 0.07 K. The dHvA oscillations due to orbits from the neck sections and "cubic box" of the Fermi surface were detected. The dHvA frequencies as well as the cyclotron effective masses were calculated using the full-potential linear muffin-tin orbitals method within the generalized gradient approximation. A comparison of the experimental and calculated cyclotron mass shows unusually large electron-phonon interaction on the neck (lambdaep=0.95) and box (lambdaep=1.07) sections of the Fermi surface on the Brillouin zone boundaries.
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