NMR lineshape in Metallic Nanoparticles: a Matrix Continued Fraction evaluation

Details NMR lineshape in Metallic Nanoparticles: a Matrix Continued Fraction evaluation NMR lineshape in Metallic Nanoparticles: a Matrix Continued Fraction evaluation

1997-04-04

arxiv.org/abs/cond-mat/9704044v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages,LATEX,5 postscript figures,to appear in PRB (tentatively June)

Scientific paper

10.1103/PhysRevB.56.4887

In metallic nanoparticles, the different electronic environment seen by each magnetic nucleus produces a distribution of Knight shifts of the NMR frequencies which is observed as an inhomogeneously broadened lineshape. We study the fluctuations in the local density of states for s electrons at the Fermi energy in a simple LCAO model. We resort to a Matrix Continued Fractions calculation of the Green's functions. Results show that line broadens asymmetrically and its shift decreases as the particle size or the temperature diminish satisfying a universal scaling function. However, for very small particles, surface states become relevant to determine a lineshape that departs from the universal scaling behavior. These trends are consistent with the observed tendencies in Cu and Pt particles.

Affiliated with

Also associated with

No associations

Rating

NMR lineshape in Metallic Nanoparticles: a Matrix Continued Fraction evaluation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with NMR lineshape in Metallic Nanoparticles: a Matrix Continued Fraction evaluation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NMR lineshape in Metallic Nanoparticles: a Matrix Continued Fraction evaluation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-261034