Fluctuaciones térmicas en la conductividad de superconductores de alta temperatura en presencia de campos magnéticos

Momento

Jairo Roa Rojas¹ 

[1] Universidad Nacional de Colombia;

关键词: Materiales superconductores;    fluctuaciones térmicas;    conductividad eléctrica;   

DOI  :  

来源: DOAJ

【 摘 要 】

One very interesting characteristic of the type II superconductor materials is observed in the neighborhood of the transition between normal and superconductor states, which is related with the occurrence of new transport channels of superparticles still in the normal phase. This phenomenon is known as thermodynamic fluctuations and is conformed by some types of observable effects in the high temperature oxides. These are experimentally accessible by measurements of equilibrium and transport properties. Although it is relatively easy t o obtain information of the experimental evidence of this phenomenon, the understanding of the physical mechanisms involved is not frequently explicit in the literature. The aim of this article is to present the origin, the consequences and any experimental evidences of the effects of thermal fluctuations in the electric conductivity, on the magnetic fields application, in high critical temperature superconductors.

【 授权许可】

Unknown