Approaching the ground state of the kagome antiferromagnet

Physics – Condensed Matter – Strongly Correlated Electrons

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4 pages, 4 figures, contact author: w.schweika@fz-juelich.de

Scientific paper

Y{0.5}$Ca{0.5}BaCo4O7 contains kagome layers of Co ions, whose spins are strongly coupled according to a Curie-Weiss temperature of -2200 K. At low temperatures, T = 1.2 K, our diffuse neutron scattering study with polarization analysis reveals characteristic spin correlations close to a predicted two-dimensional coplanar ground state with staggered chirality. The absence of three dimensional long-range AF order proves negligible coupling between the kagome layers. The scattering intensities are consistent with high spin S=3/2 states of Co2+ in the kagome layers and low spin S=0 states for Co3+ ions at interlayer sites. Our observations agree with previous Monte Carlo simulations indicating a ground state of only short range chiral order.

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

Approaching the ground state of the kagome antiferromagnet 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 Approaching the ground state of the kagome antiferromagnet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Approaching the ground state of the kagome antiferromagnet will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-152233

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