title: A magnetic resonance study of MoS(2) fullerene-like nanoparticles.
abstract: We report on the first nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) investigation of inorganic fullerene-like MoS(2) nanoparticles. Spectra of bulk 2H-MoS(2) samples have also been measured for comparison. The similarity between the measured quadrupole coupling constants and chemical shielding anisotropy parameters for bulk and fullerene-like MoS(2) reflects the nearly identical local crystalline environments of the Mo atoms in these two materials. EPR measurements show that fullerene-like MoS(2) exhibits a larger density of dangling bonds carrying unpaired electrons, indicative of them having a more defective structure than the bulk sample. The latter observation explains the increase in the spin-lattice relaxation rate observed in the NMR measurements for this sample in comparison with the bulk 2H- MoS(2) ones.
authors.affiliation: Department of Physics, Ben-Gurion University of the Negev, PO Box 653, Beer-Sheva 84105, Israel.
authors.forename: A M
authors.initials: AM
authors.lastname: Panich
authors.forename: A I
authors.initials: AI
authors.lastname: Shames
authors.forename: R
authors.initials: R
authors.lastname: Rosentsveig
authors.forename: R
authors.initials: R
authors.lastname: Tenne