Destruction of manganite La0.825Ba0.175MnO3 ferromagnetism caused by structural disordering |
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| Authors: | Yurii Chukalkin Alexander Teplykh Boris Goshchitskii |
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| Institution: | 1. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, 620041 Ekaterinburg, RussiaPhone: +7 34377 31476, Fax: +7 34377 31476;2. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, 620041 Ekaterinburg, Russia |
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| Abstract: | The methods of neutron diffraction, X‐ray and magnetic measurements were used to study the structural and magnetic states of disordered samples of manganite La0.825Ba0.175MnO3. A disordered state was attained by irradiation with fast neutrons. It was established that the ferromagnet → spin glass‐like magnetic transformation takes place at a substitution concentration of ～6%. A magnetic state diagram of structurally disordered manganite was constructed. The magnetic state transformations are explained by the effect of localization of e g‐electrons responsible for kinetic ferromagnetic exchange. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
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| Keywords: | 61 80 Hg 75 25 +z 75 30 Cr 75 40 Kz 75 47 Lx 75 50 Lk |
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