Issues »  Volume 37, Issue 10

Structural, Electrical and Magnetoresistive Properties of Strontium-Substituted Lanthanum Manganites

T. I. Polek$^{1}$, A. I. Tovstolytkin$^{1}$, S. O. Solopan$^{2}$, A. G. Belous$^{2}$, S. V. Nedukh$^{3}$, S. I. Tarapov$^{3}$

$^{1}$Institute of Magnetism under NAS and MES of Ukraine, 36b Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
$^{2}$V.I. Vernadsky Institute of General and Inorganic Chemistry, NAS of Ukraine, 32/34 Academician Palladin Ave., 03680 Kyiv, Ukraine
$^{3}$O.Ya. Usikov Institute for Radiophysics and Electronics, NAS of Ukraine, 12 Academician Proskura Str., 61085 Kharkiv, Ukraine

Received: 25.06.2015; final version - 17.08.2015. Download: PDF

Structural, electrical, and magnetoresistive properties of La$_{1-x}$Sr$_{x}$MnO$_{3}$ ($х = 0,15—0,60$) samples fabricated by sol—gel method are studied. Crystallographic parameters are measured by X-ray diffraction technique. The measurements of electrical properties are carried out in the temperature range 77—380 K both in external magnetic field and without it. Temperature dependences of the electrical and magnetoresistive properties of compounds are analysed for different Sr concentrations. Concentration dependence of the Curie temperature $Т_{С}$ of La$_{1-x}$Sr$_{x}$MnO$_{3}$ are determined.

Key words: substituted manganite, sol—gel method, metal—dielectric transition, magnetoresistance.

URL: http://mfint.imp.kiev.ua/en/abstract/v37/i10/1395.html

DOI: https://doi.org/10.15407/mfint.37.10.1395

PACS: 61.66.Fn, 71.30.+h, 75.47.Gk, 75.47.Lx, 81.20.Fw, 81.40.Rs

Citation: T. I. Polek, A. I. Tovstolytkin, S. O. Solopan, A. G. Belous, S. V. Nedukh, and S. I. Tarapov, Structural, Electrical and Magnetoresistive Properties of Strontium-Substituted Lanthanum Manganites, Metallofiz. Noveishie Tekhnol., 37, No. 10: 1395—1404 (2015) (in Ukrainian)

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