کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10710270 | 1024664 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of pressure and magnetic field on the O-R structural phase transition in La1âxSrxMnO3 single crystals: the transition heat
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We study the effect of pressure and a magnetic field on the temperature TS of the structural transition from orthorhombic to rhombohedral phase in La1âxSrxMnO3 single crystals. The temperature dependence of the phase volumes and the jumps in saturation magnetization (x=0.20 and 0.175) or magnetic susceptibility in paramagnetic state (x=0.15) have been measured and then the transition heats have been determined. In all crystals, the transition heat is very small (<0.6Â kJ/mol). For given x, the heat derived from the TSâH curve is less than that derived from the TSâP curve, which is likely to indicate internal stresses in the crystals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 295, Issue 1, August 2005, Pages 77-81
Journal: Journal of Magnetism and Magnetic Materials - Volume 295, Issue 1, August 2005, Pages 77-81
نویسندگان
E.A. Neifeld, N.G. Bebenin, V.E. Arkhipov, K.M. Demchuk, V.S. Gaviko, A.V. Korolev, N.A. Ugryumova, Ya.M. Mukovskii,