Collective magnetic excitations in mixed-valence Sm0.83Y0.17S

Details Collective magnetic excitations in mixed-valence Sm0.83Y0.17S Collective magnetic excitations in mixed-valence Sm0.83Y0.17S

2001-12-18

arxiv.org/abs/cond-mat/0112328v1

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages in pdf format, 3 figures, submitted to Phys. Rev. B

Scientific paper

10.1103/PhysRevB.65.153201

The magnetic spectral response of black-phase mixed-valence Sm0.83Y0.17S has been measured by inelastic neutron scattering on a single crystal. Two magnetic peaks are observed in the energy range of the Sm2+ spin-orbit transition (25-40 meV). Both of them exhibit significant dispersion along the three main symmetry directions, reminiscent of the spin-orbit exciton branch found in pure divalent SmS. The results can be reproduced by a simple phenomenological model accounting for the existence of sizeable Sm-Sm exchange interactions, and a microscopic mechanism is proposed on the basis of the "local-bound-state" theory developed previously for SmB6.

Affiliated with

Also associated with

No associations

Rating

Collective magnetic excitations in mixed-valence Sm0.83Y0.17S 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 Collective magnetic excitations in mixed-valence Sm0.83Y0.17S, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collective magnetic excitations in mixed-valence Sm0.83Y0.17S will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-43864