2018/12/07 by Sangil Kwon, Yongchao Tang, Kwon, Sangil +8
Physics and Astronomy · #FOS: Physical sciences #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Superconductivity (cond-mat.supr-con)
paper · pdf · doi:10.48550/arxiv.1812.03227
openalex publication_date 2018/12/07 · openalex created_date 2022/08/01 · openalex updated_date 2026/07/28
We investigate the magnetic hysteresis of a superconducting microstrip\nresonator with a high edge barrier. We measure the magnetic hysteresis while\neither sweeping a magnetic field or tuning the edge barrier by high microwave\ncurrent. We show that the magnetic hysteresis of such a device is qualitatively\ndifferent from that of one without an edge barrier and can be understood based\non the generalized critical-state model. In particular, we propose and\ndemonstrate a simple and intuitive method that relies on a plot of the quality\nfactor versus the resonance frequency for revealing the physical processes\nbehind those hysteretic behaviors. Based on this, we find that the interplay\nbetween the Meisser current and vortex pinning is essential for understanding\nthe magnetic hysteresis of such a device.\n