Crystal structure and magnetic properties of high Mn-doped strontium hexaferrite

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• 作者：F.N. Tenorio-Gonzá ; lez^a ; ^b ; A.M. Bolarí ; n-Miró ; ^a ; F. Sá ; nchez-De Jesú ; s^a ; ^{fsanchez@uaeh.edu.mx} ; P. Vera-Serna^b ; N. Mené ; ndez-Gonzá ; lez^c ; J. Sá ; nchez-Marcos^c
• 关键词：High-energy ball milling ; Mn-doped Sr-hexaferrite ; Mö ; ssbauer spectroscopy ; SrFe12-xMnxO19 ; High coercivity
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：695
• 期：Complete
• 页码：2083-2090
• 全文大小：2400 K
• 卷排序：695

文摘

SrMnxFe12-xO19, were obtained by high energy ball milling and annealing at 950 °C. A high concentration of Mn, up to x = 5, has been obtained. The substitution mechanism and effect of Mn3+ in Sr-hexaferrites are reported. The Mn3+ ions occupy 2a and 12k sites confirmed by Mössbauer study. The substitution of Fe3+ per Mn3+ increases the coercivity field up to 9.7 kOe.