کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1816757 | 1525271 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The role of disorder in Fe-doped CMR manganites as explored by μSR spectroscopy
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The role of disorder in Fe-doped CMR manganites as explored by μSR spectroscopy The role of disorder in Fe-doped CMR manganites as explored by μSR spectroscopy](/preview/png/1816757.png)
چکیده انگلیسی
A study on the effect of Fe doping on the magnetic properties of La0.7Pb0.3Mn1-xFexOx, x=0 and x=0.2 perovskites is conducted using muon spectroscopy and macroscopic static magnetization measurements. For x=0, magnetization curves show a clear ferromagnetic component while a 20% Fe doping leads to the appearance of a kink in zero-field curves at low temperatures, attributed to progressive spin freezing together with a reduction of the ferromagnetic component. On dynamic grounds, we show that this effect translates into the appearance of non-exponential relaxation as Tc is crossed from above.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volumes 374â375, 31 March 2006, Pages 63-66
Journal: Physica B: Condensed Matter - Volumes 374â375, 31 March 2006, Pages 63-66
نویسندگان
J. Gutiérrez, F.J. Bermejo, J.M. Barandiáran, S.P. Cottrell, P. Romano, C. Mondelli, L. Fernandéz BarquÃn, A. Peña,