| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Steiger, Bernd
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (1/1 displayed)
Places of action
| Organizations | Location | People |
|---|
article
Optically induced changes and long-term relaxations of resistivity and critical temperature in He+ irradiated YBa2Cu3Ox
Abstract
Thin films of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>x</sub> with superconducting critical temperatures (T<sub>c</sub>) ranging from 58 K to 72 K prepared by pulsed-laser deposition and subsequent irradiation with 75 keV He ions. Optical the films with a He-Ne laser resulted in a small resistivity reduction, when the experiment was carried short period of time after the ion irradiation. The value of T<sub>c</sub>, was essentially unchanged by the treatment. Further light excitation experiments did not show a significant effect on the resistivity samples. We conclude that ion-irradiated metallic YBa<sub>2</sub>Cu<sub>3</sub>O<sub>x</sub> does not exhibit the persistent conductivity observed in oxygen-depleted samples with comparable critical temperatures. On the hand we have observed a long-term relaxation of T<sub>c</sub>, towards larger values that takes place even when samples are kept in the dark. Our results indicate that T<sub>c</sub>, may increase after ion irradiation to an value about 20% over the initial value on a typical time scale of years. This observation may be possible applications of light-ion irradiated YBa<sub>2</sub>Cu<sub>3</sub>O<sub>x</sub>.