Temperature evolution of lanthanum-strontium manganites magnetic properties

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

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Published inSt. Petersburg State Polytechnical University Journal. Physics and Mathematics Vol. 248; no. 3; pp. 15 - 22
Main Authors Vanina, P.Yu, Naberezhnov, A.A., Nizhankovskii, V.I., Mamin, R.F.
Format Journal Article
LanguageEnglish
Russian
Published St. Petersburg Peter the Great St. Petersburg State Polytechnical University 01.09.2016
Subjects
Evolutionary biology
Magnetic fields
Temperature
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Summary:The temperature dependences of the magnetization M(T) for multiferroic single crystal lanthanumstrontium manganites La0.875Sr0.125MnO3 (LSMO-0.125) and La0.93Sr0.07MnO3 (LSMO-0.07) have been obtained. It was 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) belonged 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 were determined. They were 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:2304-9782
2304-9782
DOI:10.5862/JPM.248.2