کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1820967 1525788 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Anomalous vortex flow and noise in the quantum liquid phase of amorphous films
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Anomalous vortex flow and noise in the quantum liquid phase of amorphous films
چکیده انگلیسی

We measure the fluctuating component of the flux-flow voltage, δV(t), about the average voltage in the low-temperature (T) liquid phase of amorphous MoxSi1−x films. For the 100-nm-thick film δV(t) originating from the vortex motion is clearly visible in the quantum-vortex-liquid (QVL) phase, where the distribution of δV(t) is asymmetric, suggestive of the unusual vortex motion. For the thin (6 and 4 nm) films, in which the QVL phase is not determined from the T dependence of the resistance, the similar unusual (avalanche-like) vortex motion is observed in nearly the same reduced-T regime. These results support the view that vortex dynamics in the low-T liquid phase of thick and thin films is dominated by common physical mechanisms related to quantum-fluctuation effects.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volumes 437–438, 15 May 2006, Pages 242–246
نویسندگان
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