arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0912.2835cond-mat.supr-con
收藏

YBCO单晶中的低磁场动力学

Trapped low magnetic field dynamics in YBCO single crystals

V. Yu. Monarkha, A. A. Shablo, V. P. Timofeev

摘要:

在超导相变温度附近的强热涨落区域,研究了YBCO单晶中俘获的低磁通量动力学,包括局域磁通动力学。建立了与磁化行为的准对数等温弛豫(先前在高磁场中观察到的)的本质区别。在经典的热激活涡蠕动模型的框架内,对这些温度下的有效钉扎势进行了估算。

英文摘要:

Trapped low magnetic flux dynamics including local ones are investigated in YBCO single crystals in the strong thermal fluctuations domain near the superconducting phase transition temperatures. The essential difference from quasi-logarithmic isothermal relaxation of a magnetization behavior (observed earlier in high magnetic fields) was established. Within the framework of classic model of a thermal activated vortices creep the estimation of an effective pinning potential was made at these temperatures.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑