2002/12/16 by S. Kolesnik, S. Koleśnik, Kolesnik, S. +3
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Materials Science (cond-mat.mtrl-sci) #Theoretical and Computational Physics #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.cond-mat/0212378
5 pages, 5 figures, RevTeX, To be published in J. Supercond.: Incorp. Novel Materials
arxiv created 2002/12/16 · openalex publication_date 2002/12/16 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Alternating current susceptibility and direct current magnetization have been studied for polycrystalline Ca1-xMnxO. On increasing the Mn content, magnetic ordering changes from spin-glass behavior for 0.25 \leqslant x \leqslant 0.4 to antiferromagnetic order. The paramagnetic/antiferromagnetic transition is of second order for 0.5 \leqslant x \leqslant 0.65 and of first order for x \geqslant 0.7. For low Mn concentrations, the high-temperature alternating current susceptibility can be described by a diluted Heisenberg magnet model developed for diluted magnetic semiconductors.