𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Thermally-activated vortex dynamics in Bi2CaSr2Cu2O8+δ studied by complex susceptibility measurements

✍ Scribed by J.H.P.M. Emmen; V.A.M. Brabers; W.J.M. de Jonge

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
609 KB
Volume
176
Category
Article
ISSN
0921-4534

No coin nor oath required. For personal study only.

✦ Synopsis

Complex AC magnetic susceptibility has been measured on BizCaSrZCuzOs+d single crystals with hhc, HoJc-axis.

It will be shown that field, frequency and temperature dependence of both z' and z" in a constant but sufficiently large DC magnetic field can quantitatively be described by thermally-activated flux flow (TAFF) provided that a narrow distribution of activation energies is implemented. From the frequency dependence of the AC z transition, a power law for the DC field dependence of the activation energy has been found, with an exponent -a.

📜 SIMILAR VOLUMES

Flux line dynamics in crystal YBa2Cu3O7−
Flux line dynamics in crystal YBa2Cu3O7−δ studied by mechanical measurements
✍ S. de Brion; R. Calemczuk; J.Y. Henry 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 459 KB

We have studied the flux line dynamics and its anisotropy in a crystal YBa2Cu30 x as a function of the magnetic field and the oxygen content; 0.5 T<H< 7 T, x=6.9 and 6.6. At low temperature, the observed behavior is in agreement with a pinned flux line lattice. A residual dissipation appears dependi