Magnetic phase diagram of cubic perovskites SrMn1-xFexO3

Article

关键词: MANGANESE OXIDE PEROVSKITES;    METAL-INSULATOR-TRANSITION;    CATION DISORDER;    SPIN-GLASS;    SYSTEM;    0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-1;    TEMPERATURE;    SRFEO3;   

DOI  :  10.1103/PhysRevB.67.144402

来源: SCIE

【 摘 要 】

We combine the results of magnetic and transport measurements with Mossbauer spectroscopy and room-temperature diffraction data to construct the magnetic phase diagram of the family of cubic perovskite manganites SrMn1-xFexO3. We have found antiferromagnetic ordering for lightly and heavily Fe-substituted material, while intermediate substitution leads to spin-glass behavior. Near the SrMn0.5Fe0.5O3 composition these two types of ordering are found to coexist and affect one another. The spin-glass behavior may be caused by competing ferro- and antiferromagnetic interactions among Mn4+ and observed Fe3+ and Fe5+ ions.

【 授权许可】

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