Magnetic phase diagram of cubic perovskites SrMn_1-xFe_xO_3

B. Dabrowski; C. W. Kimball; D. E. Brown; J. Mais; O. Chmaissem; R. Feng; R. Kruk; S. Kolesnik

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arxiv cond-mat/0302214 v1 pith:SGAZQ3AO submitted 2003-02-11 cond-mat.mtrl-sci cond-mat.str-el

Magnetic phase diagram of cubic perovskites SrMn₁-xFe_xO₃

S. Kolesnik , B. Dabrowski , J. Mais , D. E. Brown , R. Feng , O. Chmaissem , R. Kruk , C. W. Kimball This is my paper

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keywords magneticsrmnantiferromagneticbehaviorcubicdiagramfoundordering

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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 new family of cubic perovskite manganites SrMn_1-xFe_xO_3. We have found antiferromagnetic ordering for lightly and heavily Fe-substituted material, while intermediate substitution leads to spin-glass behavior. Near the SrMn_0.5Fe_0.5O_3 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 Mn^4+ and observed Fe^3+ and Fe^5+ ions.

Magnetic phase diagram of cubic perovskites SrMn₁-xFe_xO₃

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