CDW depinning of NbSe3 under a magnetic field

✍ Scribed by J. Richard; O. Laborde; P. Monceau

• Publisher: Elsevier Science
• Year: 1986
• Weight: 168 KB
• Volume: 143
• Category: Article
• ISSN: 0378-4363
• DOI: 10.1016/0378-4363(86)90049-5

✦ Synopsis

We report on non-linear transport properties of NbSe 3 at 1.8 K under a magnetic field up to 20 I'. We show that the non linearity takes place at a definite thresho]d field. But we bring the evidence of a new single particle non-linear conductivity. We define two threshold lields : the first one which is magnetic field dependent and angular dependent with a minimum value when H is ~ (b,c) and a maximum value when H is ff (b,c). We associate this field to the onset of the motion of a domain structure. The second threshold field at higher value corresponds to the depinning of the CDW as a whole ; this threshold field is magnetic field independent.