Lattice, electrical, and magnetic effects in lanthanum manganites La1−x Sr x MnO3 (x = 0.125, 0.150, 0.175)

Bulatov, A. R.; Bogdanova, Kh. G.; Golenishchev-Kutuzov, V. A.; Elokhina, L. V.; Neifeld, E. A.; Королев, А. В.

doi:10.1134/s1063783410110272

Cited by 4 publications

(1 citation statement)

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“…At the same time, the application of known models of particular physical processes to mul ticomponent compositions of manganites is debatable. In many cases, the experimental data are rather incomplete and contradictory, which is due to the absence of phase diagrams for manganites with partial replacement of manganese and also the existence in them of clusters and heterogeneities with competing exchange interactions and structural distortions, as well as various types of magnetic and electron ordering [1][2][3][4][5][6]. The most important factors determining the properties of manganites are the Zener double exchange between the Mn 3+ and Mn 4+ ions and the Jahn-Teller effect at the Mn 3+ ions [1,7].…”

Section: Introductionmentioning

confidence: 98%

Properties of La1 − x Sr x Mn0.925Zn0.075O3 (x = 0.075, 0.095, 0.115) ceramics

et al. 2012

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The EPR spectra and conductivity of La 1 -x Sr x Mn 0.925 Zn 0.075 O 3 (x = 0.075, 0.095, 0.115) ceram ics with a crystal structure examined by X ray diffraction have been studied. At x = 0.095, a pronounced mag netic field dependence of the electrical resistivity has been revealed in the temperature range from 190 to 228 K. For samples with x = 0.075 and 0.115, no similar behavior has been observed. The EPR linewidth lin early increases with increasing temperature in the range from 180 to 380 K for all the samples; the slope decreases as the strontium concentration increases.

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