Ferromagnetic hollandite K&lt;sub&gt;2&lt;/sub&gt;Cr&lt;sub&gt;8&lt;/sub&gt;O&lt;sub&gt;16&lt;/sub&gt;

Sugiyama, Jun; Nozaki, Hiroshi; Månsson, Martin; Prša, Krunoslav; Amato, Alex; Isobe, Masahiko; Ueda, Yutaka

doi:10.1016/j.phpro.2012.04.069

Ferromagnetic hollandite K₂Cr₈O₁₆

Sugiyama J, Nozaki H, Månsson M, Prša K, Amato A, Isobe M & Ueda Y

Citation

Sugiyama, J., Nozaki, H., Månsson, M., Prša, K., Amato, A., Isobe, M., & Ueda, Y. (2012). Ferromagnetic hollandite K₂Cr₈O₁₆. In G. M. Luke & J. Sonier (Eds.), Physics procedia: Vol. 30. 12th international conference on muon spin rotation, relaxation and resonance (μSR2011) (pp. 186-189). https://doi.org/10.1016/j.phpro.2012.04.069

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:22251

The magnetism of a quasi-one-dimensional ferromagnetic (FM) compound, K₂Cr₈O₁₆, has been investigated by muon-spin rotation and relaxation (μ⁺SR) using a powder samplein the temperature range between 2 and 230K. Below T_C = 164 K, muon-spin precession signals were clearly observed in the zero-field spectrum, indicating the formation of static FM order.The distribution of the internal field was found to change slightly at the metal-to-insulator transition temperature, T_MI ∼ 95 K. Electrostatic potential calculations and dipole field calculations suggested that FM order is not parallel to the [001] direction but likely parallel to the [110] direction.