Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

TT: Fachverband Tiefe Temperaturen

TT 33: Symposium: High-Temperature Superconductivity

TT 33.13: Vortrag

Donnerstag, 28. Februar 2008, 18:40–19:10, H 0104

Indications on fluctuation origin of the recently observed giant Nernst effect in superconductors above Tc — •A.A. Varlamov — COHERENTIA-INFM, CNR, Rome, Italy

There are two types of fluctuation corrections: the first, like conductivity, have to be compared with the corresponding value of the normal state, the second, like fluctuation magnetization, reflect appearance of principally new quality and have to be compare with the anomalous diamagnetism of superconducting phase. I will show that the Nernst signal belongs to the effects of the second type. Both GL phenomenology and microscopic analysis indicate that Nernst effect, negligible in normal metal manifests itself by giant fluctuations along the line Tc(H).

100% | Bildschirmansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2008 > Berlin