Temperature evolution of the magnetic properties of lanthanum-strontium manganites

The temperature dependences of the magnetization M(T) for multiferroic single crystal lanthanum-strontium manganites La0.875Sr0.125MnO3 (LSMO-0.125) and La0.93Sr0.07MnO3 (LSMO-0.07) have been obtained. It is shown that the phase transitions (PT) in LSMO-0.07 at TC=125.8(1,5) K and in LSMO-0.125 at T...

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Bibliographic Details
Published in:St. Petersburg Polytechnical University Journal. Physics and Mathematics 2016-10, Vol.2 (3), p.175-180
Main Authors: Vanina, Polina Yu, Naberezhnov, Aleksandr A., Nizhankovskii, Viktor I., Mamin, Rinat F.
Format: Article
Language:English
Subjects:
Lanthanum-strontium manganite
Magnetic moment
Magnetization
Multiferroic
Phase transition
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Summary:The temperature dependences of the magnetization M(T) for multiferroic single crystal lanthanum-strontium manganites La0.875Sr0.125MnO3 (LSMO-0.125) and La0.93Sr0.07MnO3 (LSMO-0.07) have been obtained. It is shown that the phase transitions (PT) in LSMO-0.07 at TC=125.8(1,5) K and in LSMO-0.125 at TC1=181.2 (1.5) belong to the second order type. The phase transition in LSMO-0.125 at TC2=157.6 (1.5) K is the first order PT. From the M–1(T) curves, the values of the magnetic moments have been determined. They are equal to μ1=2.47(1) μB/Mn and μ2=2.82(1) μB/Mn, for LSMO-0.125 and LSMO-0.07 respectively.
ISSN:2405-7223
2405-7223
DOI:10.1016/j.spjpm.2016.08.001