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Event 

Title:
Yutao Xing: SC/FM nanocomposites
When:
01.09.2011 11.00 h
Where:
Matéria Condensada Teórica - Niterói
Category:
Seminários

Description

Transport and magnetic properties of superconductor/ferromagnet nanocomposites

Yutao Xing


In this talk I will present experimental results of superconductor(SC)/ferromagnet(FM) nanocomposites. We prepared samples with Co magnetic nanoparticles (~ 5 nm) embedded in different superconducting matrices (Pb and Si) and SC/FM (Nb/Co) multilayers. In Pb/Co samples we found the Co particles induced spontaneous vortices and it has a phase transition from vortex glass to vortex liquid with increasing temperature or external magnetic field. In Bi/Co samples, with increase of Co volume fraction, the Bi films changes from metalic behavior to insulator-like behavior at normal state and there is still a superconducting transition at Tc. I will also present the result of SC/FM multilayers and the result of the latest work which has been done at IF-UFF

 

Venue

Group:
Matéria Condensada Teórica
Street:
IF-UFF
ZIP:
24210-346
City:
Niterói
State:
RJ
Country:
Country: br

Description

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