کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1819370 1525761 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Possible influence of two-band superconductivity on the behaviour of the second magnetization peak in La2−xSrxCuO4 single crystals
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Possible influence of two-band superconductivity on the behaviour of the second magnetization peak in La2−xSrxCuO4 single crystals
چکیده انگلیسی
An anomalous temperature T dependence of the field Hon for the onset of the second magnetization peak (SMP) in La1.81Sr0.19CuO4 single crystals (with the external magnetic field H oriented parallel to the c axis) is discussed. While the peak field Hp and the magnetization at Hp have a continuous variation with T, Hon exhibits a sudden decrease with increasing T for T ∼ 11 K-15 K. The analysis of the nature of the SMP in La2−xSrxCuO4 single crystals in terms of a simple dynamic energy balance relation suggests that the observed behaviour could be related to the particular T dependence of the superfluid density in the case of two-band superconductivity, affecting the T variation of the elastic energy of the vortex system at low H.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity - Volume 469, Issues 15–20, 15 October 2009, Pages 1136-1139
نویسندگان
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