INVESTIGADORES
PASTORIZA Hernan
congresos y reuniones científicas
Título:
Detection of discretized single-shell penetration in mesoscopic vortex matter
Autor/es:
M. I. DOLZ; Y. FASANO; N. R. CEJAS BOLECEK; H. PASTORIZA; M. KONCZYKOWSKI; C. J. VAN DER BEEK
Lugar:
Buenos Aires
Reunión:
Conferencia; 27th International Conference on Low Temperature Physics (LT27); 2014
Institución organizadora:
IUPAP
Resumen:
We investigated configurational changes in mesoscopic vortex matter with less than thousand vortices during flux penetration in freestanding 50 µm diameter disks of Bi2Sr2CaCu2O8+δ. High-resolution AC and DC local magnetometry data reveal oscillations in the transmittivity echoed in peaks in the third-harmonics magnetic signal fainting on increasing vortex density. By means of extra experimental evidence and a simple geometrical analysis we show that these features fingerprint the discretized entrance of single-shells of vortices having a shape that mimics the sample edge.
