S Serventi et al 2003 Supercond. Sci. Technol. 16 152 doi:10.1088/0953-2048/16/2/304
S Serventi1, G Allodi1, C Bucci1, R De Renzi1, G Guidi1, E Pavarini2, P Manfrinetti3 and A Palenzona3
Show affiliationsWe measured the 27Al and 11B NMR spin lattice relaxation rates and the isotropic Knight shifts in powder samples of Mg1−xAlxB2, as a function of the Al concentration, x. The temperature independence of the Knight shifts and the linear temperature dependence of the relaxation are verified throughout the compositions explored. The variation with x of the measured quantities is discussed in terms of the projected densities of states at the Fermi energy, finding good qualitative as well as quantitative agreement with recent band structure calculations.
76.60.Cq Chemical and Knight shifts
Issue 2 (February 2003)
Received 26 September 2002
Published 30 December 2002
S Serventi et al 2003 Supercond. Sci. Technol. 16 152
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