Strong Couplings-wave Superconductivity in MgB2:11B-NMR Study of MgB2and Al-doped MgB2
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چکیده
منابع مشابه
Anisotropic s-wave superconductivity in MgB2
It has recently been observed that MgB2 is a superconductor with a high transition temperature. Here we propose a model of anisotropic s-wave superconductivity which consistently describes the observed properties of this compound, including the thermodynamic and optical response in sintered MgB2 wires. We also determine the shape of the quasiparticle density of states and the anisotropy of the ...
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We substantiate by numerical and analytical calculations that the recently discovered superconductivity below 4 K in 3% boron-doped diamond is caused by electron-phonon coupling of the same type as in MgB2, albeit in three dimensions. Holes at the top of the zone-centered, degenerate sigma-bonding valence-band couple strongly to the optical bond-stretching modes. The increase from two to three ...
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ژورنال
عنوان ژورنال: Journal of the Physical Society of Japan
سال: 2002
ISSN: 0031-9015,1347-4073
DOI: 10.1143/jpsjs.71s.332