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Direct evidence for two-band superconductivity in MgB2 single crystals from directional point-contact spectroscopy in

R S Gonnelli1, D Daghero, G A Ummarino

  • 1INFM-Dipartimento di Fisica, Politecnico di Torino, Corso Duca degli Abruzzi 24, Italy. gonnelli@polito.it

Physical Review Letters
|December 18, 2002
PubMed

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