کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1820935 | 1525788 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Josephson-vortex states at higher magnetic fields in Bi2Sr2CaCu2O8+y
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
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چکیده انگلیسی
Josephson-vortex (JV) states in Bi2Sr2CaCu2O8+y (Bi-2212) have been studied by measuring the flow resistance of JVs and I-V characteristics with a current along the c-axis and a magnetic field parallel to the superconducting layers. In the flow resistance, periodic oscillations have been found as a function of the parallel field. As this phenomenon is related to the formation of a triangular lattice of JVs as the ground state, the 3D-ordered state of JVs can be determined in the magnetic phase diagram. With increasing the doping level of Bi-2212, the 3D-ordered phase is shifted towards a higher magnetic field and a higher temperature, which is well explained by the theoretical analyses. Above the 3D-ordered phase, JV state has been studied with I-V characteristic measurements, in which the voltage shows a distinct change in the exponent of the power-law dependence to the current between two phases. This suggests that the 3D-ordered phase changes to the disordered phase along the c-axis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volumes 437â438, 15 May 2006, Pages 100-103
Journal: Physica C: Superconductivity and its Applications - Volumes 437â438, 15 May 2006, Pages 100-103
نویسندگان
Kazuto Hirata, Shuuichi Ooi, Shan Yu, Takashi Mochiku,