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Effect of Fe doping on structure,magnetic and electrical properties La0.7Ca0.3Mn0.5Fe0.5O3 manganite |
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| Authors: | NT Dang VS Zakhvalinskii DP Kozlenko The-Long Phan SE Kichanov SV Trukhanov AV Trukhanov YuS Nekrasova SV Taran SV Ovsyannikov SH Jabarov EL Trukhanova |
| Affiliation: | 1. Institute of Research and Development, Duy Tan University, R.809, K7/25 Quang Trung, 550000 Da Nang, Viet Nam;2. Belgorod State National Research University, Pobedy St., 85, 308015 Belgorod, Russia;3. Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Joliot-Curie str., 6, 141980 Dubna, Russia;4. Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 449-791, Republic of Korea;5. Scientific Practical Materials Research Centre, NAS of Belarus, P. Brovki str., 19, 220072 Minsk, Belarus;6. National University of Science and Technology “ MISiS”, Leninsky Prospekt, 4, 119049 Moscow, Russia;g. South Ural State University, Lenin Prospect, 76, 454080 Chelyabinsk, Russia;h. Bayerisches Geoinstitut, Universität Bayreuth, D-95447 Bayreuth, Germany;i. Institute of Physics, ANAS, АZ-1143 Baku, Azerbaijan |
| Abstract: | The crystal and magnetic structures of La0.7Ca0.3Mn0.5Fe0.5O3 compound have been studied by neutron powder diffraction in the temperature range of 10–300 К. The magnetization and electrical resistivity measurements have been also performed in the temperature range of 5–300?K in magnetic fields up to 1?T. These experimental results indicate a formation of a complex magnetic state in which the long-range antiferromagnetic G-type phase coexists with the short-range ferromagnetic clusters. The electrical conductivity of La0.7Ca0.3Mn0.5Fe0.5O3 demonstrates an anomalous temperature behavior suggesting a switching between different states. The origin of the unconventional magnetic state, the mechanisms of the electrical conductivity, and correlation between magnetic and transport properties in this manganite have been discussed. |
| Keywords: | Substituted manganites Neutron powder diffraction Crystal structure Magnetic properties Conduction mechanism |
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