Pillars and pinning centers in superconducting prisms

2nd International Meeting for Researchers in Materials and Plasma Technology

物理学;材料科学

Barba-Ortega, J.^1 ; Barón-Jaimez, J.^2 ; Joya, M.R.^1

Departamento de Física, Universidad Nacional de Colombia, Bogotá, Colombia^1

Instituto de Investigaciones en Materiales, Universidad Autónoma de México, DF, México, Mexico^2

关键词: Applied magnetic fields;    Ginzburg-Landau equations;    Pinning center;    Square array;    Vortex configurations;    Vortex structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/466/1/012029/pdf
DOI  :  10.1088/1742-6596/466/1/012029

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

We solve the Ginzburg-Landau equations for to study the vortex configurations in a superconducting prism with a square array of pillars or holes in the presence of a uniform applied magnetic field. The presence of the pillars (holes) changes the vortex structures in the superconducting prism considerably. We calculate magnetization, free energy and vorticity curves, which shows the transition between different vortex configurations as a function of magnetic fields.