Evidence for short-range antiferromagnetic fluctuations in Kondo-insulating YbB12

Physics – Condensed Matter – Strongly Correlated Electrons

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4 pages, 4 figures ; submitted to Physical Review Letters

Scientific paper

10.1103/PhysRevLett.94.247204

The spin dynamics of mixed-valence YbB12 has been studied by inelastic neutron scattering on a high-quality single crystal. In the Kondo-insulating regime realized at low temperature, the spectra exhibit a spin-gap structure with two sharp, dispersive, in-gap excitations at E = 14.5 and approximately 20 meV. The lower mode is shown to be associated with short-range correlations near the antiferromagnetic wave vector q0 = (1/2, 1/2, 1/2). Its properties are in overall agreement with those expected for a "spin exciton'' branch in an indirect hybridization gap semiconductor.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Evidence for short-range antiferromagnetic fluctuations in Kondo-insulating YbB12 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 Evidence for short-range antiferromagnetic fluctuations in Kondo-insulating YbB12, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for short-range antiferromagnetic fluctuations in Kondo-insulating YbB12 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-557319

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.