Analysis of magnetization and a spin state crossover in the multiferroic Ca$_3$Co$_{2-x}$Mn$_x$O$_6$

R. Flint; H. -T. Yi; P. Chandra; S. -W. Cheong; V. Kiryukhin

doi:10.1103/PhysRevB.81.092402

Analysis of magnetization and a spin state crossover in the multiferroic Ca$_3$Co$_{2-x}$Mn$_x$O$_6$

Strongly Correlated Electrons 2013-05-29 v2 Other Condensed Matter

Authors: R. Flint , H. -T. Yi , P. Chandra , S. -W. Cheong , V. Kiryukhin

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

Ca_3Co_{2-x}Mn_xO_6 (x ~ 0.96) is a multiferroic with spin-chains of alternating Co(2+) and Mn(4+) ions. The spin state of Co(2+) remains unresolved, due to a discrepancy between high temperature X-ray absorption (S=3/2) and low temperature neutron (S=1/2) measurements. Using a combination of magnetic modeling and crystal-field analysis, we show that the existing low temperature data cannot be reconciled within a high spin scenario by invoking spin-orbit or Jahn-Teller distortions. To unify the experimental results, we propose a spin-state crossover with specific experimental predictions.

Keywords

multiferroic Ca3Co2-xMnxO6 spin state crossover crystal-field analysis magnetic modeling Co(2+) spin state

Cite

@article{arxiv.0909.4773,
  title  = {Analysis of magnetization and a spin state crossover in the multiferroic Ca$_3$Co$_{2-x}$Mn$_x$O$_6$},
  author = {R. Flint and H. -T. Yi and P. Chandra and S. -W. Cheong and V. Kiryukhin},
  journal= {arXiv preprint arXiv:0909.4773},
  year   = {2013}
}

Comments

4 pages, 3 figures

Analysis of magnetization and a spin state crossover in the multiferroic Ca$_3$Co$_{2-x}$Mn$_x$O$_6$

Abstract

Keywords

Cite

Comments

Related papers