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المؤلفTurki, Dorra
المؤلفGhouri, Zafar Khan
المؤلفAl-Meer, Saeed
المؤلفElsaid, Khaled
المؤلفAhmad, M.I.
المؤلفEasa, Ahmed
المؤلفRemenyi, Gyorgy
المؤلفMahmood, Sami
المؤلفHlil, El Kebir
المؤلفEllouze, Mohamed
المؤلفElhalouani, Foued
تاريخ الإتاحة2017-10-03T07:03:12Z
تاريخ النشر2017-09-19
اسم المنشورMagnetochemistry
المعرّفhttp://dx.doi.org/10.3390/magnetochemistry3030028
الاقتباسTurki, D.; Ghouri, Z.K.; Al-Meer, S.; Elsaid, K.; Ahmad, M.I.; Easa, A.; Remenyi, G.; Mahmood, S.; Hlil, E.K.; Ellouze, M.; Elhalouani, F. "Critical Behavior of La0.8Ca0.2Mn1−xCoxO3 Perovskite (0.1 ≤ x ≤ 0.3)". Magnetochemistry 2017, 3, 28.
معرّف المصادر الموحدhttp://hdl.handle.net/10576/5660
الملخصThe critical properties of La0.8Ca0.2Mn1−xCoxO3 (x = 0, 0.1, 0.2 and 0.3) compounds were investigated by analysis of the magnetic measurements in the vicinity of their critical temperature. Arrott plots revealed that the paramagnetic PM-ferromagnetic (FM) phase transition for the sample with x = 0 is a first order transition, while it is a second order transition for all doped compounds. The critical exponents β, γ and δ were evaluated using modified Arrott plots (MAP) and the Kouvel-Fisher method (KF). The reliability of the evaluated critical exponents was confirmed by the Widom scaling relation and the universal scaling hypothesis. The values of the critical exponents for the doped compounds were consistent with the 3D-Heisenberg model for magnetic interactions. For x = 0.1, the estimated critical components are found inconsistent with any known universality class. In addition, the local exponent n was determined from the magnetic entropy change and found to be sensitive to the magnetic field in the entire studied temperature range.
راعي المشروعThis work has been supported by the Tunisian Ministry of Scientific Research and Technology and Institute Neel at Grenoble
اللغةen
الناشرMDPI
الموضوعmanganites
critical behavior
critical exponents
local exponents
العنوانCritical Behavior of La0.8Ca0.2Mn1−xCoxO3 Perovskite (0.1 ≤ x ≤ 0.3)
النوعArticle
رقم العدد3
رقم المجلد3
ESSN2312-7481
dc.accessType Open Access


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