Dynamics of the vortex glass in the Corbino disk geometry

Dynamics of vortex glass (VG) driven by the current is studied based on current-voltage (I-V) characteristics for a thick amorphous MoxSi1-x film with Corbino-disk (CD) and strip-like contact geometries. In the VG phase the anomaly in the I-V curves is visible at certain current for the CD geometry, which is interpreted in terms of the spatial development of plastic flow motion of driven VG. The anomaly becomes less remarkable at higher temperature (T) and at fixed T it disappears in the high-field (B) region just above the VG transition (Bg) and in the low-B region well below Bg