title: High resolution 11B NMR of magnesium diboride using cryogenic magic angle spinning.
abstract: Static and magic-angle spinning (11)B nuclear magnetic resonance (NMR) data at 4.7 T and 8.5 T have been obtained under cryogenic conditions on a diluted sample of magnesium diboride powder in the normal and superconducting state. The data provide accurate information on the magnetic shift and longitudinal relaxation time down to a temperature of 8 K, with a resolution improvement over the entire temperature range. The onset of superconductivity is unaffected by the sample rotation, as revealed by a steep variation of the magnetic shift just below the critical temperature.
authors.affiliation: School of Chemistry, University of Southampton, Southampton SO17 1BJ, United Kingdom.
authors.forename: Peter
authors.initials: P
authors.lastname: Beckett
authors.forename: Mark S
authors.initials: MS
authors.lastname: Denning
authors.forename: Ivo
authors.initials: I
authors.lastname: Heinmaa
authors.forename: Mukesh C
authors.initials: MC
authors.lastname: Dimri
authors.forename: Edward A
authors.initials: EA
authors.lastname: Young
authors.forename: Raivo
authors.initials: R
authors.lastname: Stern
authors.forename: Marina
authors.initials: M
authors.lastname: Carravetta
mesh_terms: D001895:Boron / Q000737:chemistry*; D001896:Boron Compounds / Q000737:chemistry*; D017616:Magnesium Compounds / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000592:standards; D012015:Reference Standards; D013696:Temperature
chemical_list: D001896:Boron Compounds; D017616:Magnesium Compounds; C078128:magnesium boride; D001895:Boron