2003/12/09 by S. Kolesnik, B. Dabrowski, J. Mais
Materials Science · Physics and Astronomy · #Magnetic and transport properties of perovskites and related materials #Multiferroics and related materials #ZnO doping and properties #cond-mat.mtrl-sci
paper · pdf · doi:10.1063/1.1644638
RevTeX, 6 pages, 7 figures, To be published in J. Appl. Phys
arxiv created 2003/12/09 · openalex publication_date 2004/02/13 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Structural and magnetic properties have been studied for polycrystalline Zn1−xTMxO, where TM (transition metal ions)=Mn, Fe, and Co. No bulk ferromagnetism was observed for single-phase materials, contrary to the existing theories. Single-phase samples demonstrate paramagnetic Curie–Weiss behavior with antiferromagnetic interactions, similar to other diluted magnetic semiconductors. Nonoptimal synthesis conditions lead to formation of second phases that are responsible for spin-glass behavior ZnMnO3 impurity for Zn1−xMnxO [S. Kolesnik et al., J. Supercond. 15, 251 (2002)] or high-temperature ferromagnetic ordering [Co metal for Zn1−xCoxO with the Curie temperature TC>800 K or (Zn,Fe)3O4 for Zn1−xFexO with TC=440 K].