نتایج جستجو برای: curie temperature
تعداد نتایج: 455467 فیلتر نتایج به سال:
Polycrystalline samples of Cd substituted cobalt ferrites with composition Co1-xCdxFe2O4 (x = 0.00.6 in steps of 0.1) were prepared by double sintering ceramic method. The samples were sintered at 1050°C for 3 hours. X-ray diffraction pattern of the samples showed single phase cubic spinel structure. It was found that the lattice parameter increases linearly with increasing Cd content following...
The Channel-Spark method was used for deposition of highly oriented ferromagnetic La 0.7 Sr 0.3 MnO 3 films on NdGaO3 substrates. It was found that additional oxygen decreases the film quality suppressing the Curie temperature and metal-insulator transition below the room temperature. To achieve the best quality of the films the samples were either annealed in high vacuum at deposition temperat...
The effect of interstitial nitrogen on the phase transition and magnetocaloric behavior of MnAs 1−x Si x N ␦ ͑x = 0.03, 0.06, and 0.09͒ is investigated. The interstitial nitrogen atoms cause the step-scanned x-ray diffraction peaks to shift toward lower angles and lower the Curie temperature, whereas silicon addition increases the Curie temperature to near room temperature. The thermal hysteresis...
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