Successive magnetic transitions in &lt;em&gt;RE&lt;/em&gt;CoAsO

Sugiyama, Jun; Månsson, Martin; Kamazawa, Kazuya; Harada, Masashi; Ofer, Oren; Andreica, Daniel; Amato, Alex; Brewer, Jess H.; Ansaldo, Eduardo J.; Ohta, Hiroto; Michioka, Chishiro; Yoshimura, Kazuyoshi

doi:10.1016/j.phpro.2012.04.087

Successive magnetic transitions in RECoAsO

Sugiyama J, Månsson M, Kamazawa K, Harada M, Ofer O, Andreica D, Amato A, Brewer JH, Ansaldo EJ, Ohta H, Michioka C & Yoshimura K

Citation

Sugiyama, J., Månsson, M., Kamazawa, K., Harada, M., Ofer, O., Andreica, D., … Yoshimura, K. (2012). Successive magnetic transitions in RECoAsO. In G. M. Luke & J. Sonier (Eds.), Physics procedia: Vol. 30. 12th international conference on muon spin rotation, relaxation and resonance (μSR2011) (pp. 262-265). https://doi.org/10.1016/j.phpro.2012.04.087

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:22263

In order to elucidate the details of successive magnetic transitions in the rare earth cobalt arsenic oxides (RECoAsO), we have measured muon-spin rotation and relaxation(μ⁺SR) spectra of powder samples with RE = La, Ce, Pr, Nd, Sm, and Gd. Together with the result of magnetization measurements, it was found that all the compounds enter into abulk static ferromagnetic ordered phase below around 70 K(=T_C). Furthermore, additional transitions into a static antiferromagnetic ordered phase were found for the RE = Nd, Sm, and Gd compounds; namely T_N1 = 15 K and T_N2 = 7 K for Nd, T_N1 = 41.5 K and T_N2 = 17.5 K for Sm, and T_N = 3K for Gd.