凝聚态物理
铁磁性
超导电性
磁化
材料科学
微磁学
涡流
旋涡状态
电导
磁场
物理
机械
量子力学
作者
Saidur Rahman Bakaul,Birui Wu,Gang Han,Y. H. Wu
摘要
We use lateral superconductor (SC)-ferromagnet (FM)-SC device to probe the magnetization reversal process of micron sized FM disk. Upon decreasing external magnetic field from saturated state, a buckling pattern forms first. The onset of buckling pattern and its switching to vortex state are studied with the help of Andreev conductance of the SC-FM interface below the critical temperature (Tc) of SC and the magnetoresistances both below and above the Tc. In the latter case, micromagnetic modeling has been carried out to interpret the experimental results by taking into account the current distributions when the electrodes are at different states.
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