Structural, Electrical and Magnetoresistive Properties of Strontium-Substituted Lanthanum Manganites
T. I. Polek1, A. I. Tovstolytkin1, S. O. Solopan2, A. G. Belous2, S. V. Nedukh3, S. I. Tarapov3
1Institute of Magnetism under NAS and MES of Ukraine, 36b Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
2V.I. Vernadsky Institute of General and Inorganic Chemistry, NAS of Ukraine, 32/34 Academician Palladin Ave., 03680 Kyiv, Ukraine
3O.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 La1−xSrxMnO3 (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)