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Magnetic phase transitions in the bismuth-containing manganites with perovskite structure

I O Troyanchuk-+, N V Samsonenko-+, E F Shapovalova-+, I M Kolesova-+ and H Shymczak++

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The magnetic properties of solid solutions based on lanthanum and bismuth manganites were investigated. It is established that the substitution of ions by ones causes the transition from the ferromagnetic to the antiferromagnetic state while is a ferromagnet. The results are explained in terms of the superexchange interaction via anions and local distortions of the crystal structure.


PACS

75.30.Kz Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.)

75.30.Et Exchange and superexchange interactions

75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects

75.50.Dd Nonmetallic ferromagnetic materials

61.66.Fn Inorganic compounds

Subjects

Condensed matter: electrical, magnetic and optical

Condensed matter: structural, mechanical & thermal

Dates

Issue 50 (9 December 1996)

Received 18 June 1996, in final form 1 October 1996



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