| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bodea, Marius
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2012Ion beam irradiation of cuprate high-temperature superconductors: Systematic modification of the electrical properties and fabrication of nanopatternscitations
- 2012Non-ohmic electrical transport properties above the critical temperature in optimally and underdoped superconducting YBa2Cu3O6+xcitations
- 2011Modeling of Droplet Dynamic and Thermal Behavior during Gas Atomization Process
- 2010Optically induced changes and long-term relaxations of resistivity and critical temperature in He+ irradiated YBa2Cu3Oxcitations
- 2010Surface planarization and masked ion-beam structuring of YBa2Cu3O7 thin filmscitations
- 2010Modification and nano-patterning of high-Tc superconducting thin films by masked ion beam irradiationcitations
- 2009Masked ion beam irradiation of high-temperature superconductors: patterning of nano-size regions with high point-defect densitycitations
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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>.