NMR Spin echo measurement of vortex motion and the penetration depth of a type II superconductor

✍ Scribed by W.G. Clark; W.H. Wong; F. Lefloch

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 171 KB
• Volume: 235-240
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(94)92118-0

✦ Synopsis

II

An NMR spin echo measurement of driven vortex molaon in a type II superconductor is reported The effect ,~f vortex displacement during the measurement is to reduce the spin echo amplitude. A model for the effect is used to obtain the penetration depth (A) of multifilament NbTt alloy wire as a function of temperature A limiting low temperature value ,X(0) = 250 4-25 nm ts found.