.png){kind=icon}
返回
Multiple order parameter configurations in superconductor/ferromagnet multilayers
.png){kind=icon}
OA
AI
DOI：10.1103/PhysRevB.84.214512.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The coupling of two superconductors (S) through a ferromagnet (F) can lead to either a zero- or a pi-phase difference between the superconducting banks. Most research in this area is performed on trilayer S/F/S film structures, in which two-order parameter configurations are possible. Increasing the number of layers and junctions leads to a larger number of possible configurations with, in principle, different properties such as the superconducting transition temperature T-c. Here we study the behavior of a series of multilayers made of superconducting Nb and ferromagnetic Pd81Ni19. We find that for the individual layer thicknesses used, the transition width Delta T-c increases with increasing number of bilayers in the multilayer, in a well-defined manner. That the broadening is not simply due to increased disorder in the larger stacks, it is shown from x-ray diffraction, which finds very sharp interfaces for all samples; and from the effect of the magnetic field on the transition, which shows a considerable sharpening. We can make a connection with the various order parameter configurations using a matrix formulation of quasiclassical theory based on the Usadel equations and show that these different configurations take part in the Josephson networks, which are building up in the transition to the superconducting state.
Keyword:
TEMPERATURE
PROXIMITY
SUPERCONDUCTIVITY
REFLECTION
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.7
论文数:
15.4W
被引数:
41.0W
机构
引用论文
Study of Frequency Response of Quartz Crystal Microbalance to Different Wetting States of Micropillar Surfaces石英晶体微天平对不同微柱表面润湿状态的频率响应研究
PREAI
分享收藏分享收藏分享收藏Light source design using Kagome-lattice hollow core photonic crystal fibers基于 Kagome-lattice 空心芯光子晶体光纤的光源设计
PREAI
分享收藏
Observation of periodic π-phase shifts in ferromagnet-superconductor multilayers.png)
PHYSICAL REVIEW BOAAI
PHYSICAL REVIEW BIF3.7
OAAI分享收藏Theoretical description of ferromagnetic π junctions near the critical temperature -: art. no. 184519PHYSICAL REVIEW BOAAI
PHYSICAL REVIEW BIF3.7
OAAI分享收藏The effect of previous pregnancy and transfusion on HLA alloimmunization in blood donors: implications for a transfusion‐related acute lung injury risk reduction strategyTransfusionOAAI
TransfusionIF0
OAAI分享收藏
查看更多内容