IFIBA   22255
INSTITUTO DE FISICA DE BUENOS AIRES
Unidad Ejecutora - UE
artículos
Título:
Anisotropic response of the moving vortex lattice in superconducting Mo(1-x)Gex amorphous films
Autor/es:
M.I.DOLZ; D. E. SHALÓM; H. PASTORIZA; D. LÓPEZ
Revista:
PHYSICA C - SUPERCONDUTIVITY
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2012 vol. 474 p. 34 - 37
ISSN:
0921-4534
Resumen:
We have performed magnetic susceptibility measurements in Mo1−xGex
amorphous thin films biased with an electrical current using
anisotropic coils. We tested the symmetry of the vortex response
changing the relative orientation between the bias current and the
susceptibility coils. We found a region in the DC currenttemperature
phase diagram where the dynamical vortex structures behave
anisotropically. In this region the shielding capability of the
superconducting currents measured by the susceptibility coils is less
effective along the direction of vortex motion compared to the
transverse direction. This anisotropic response is found in the same
region where the peak effect in the critical current is developed. On
rising temperature the isotropic behavior is recovered.