Manuel Bibes: Spin injection and spin-charge conversion in LaAlO3/SrTiO3
| Termin |
Donnerstag, 12. Mai 2016, 17.15 - 18.30 Uhr |
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| Veranstaltungsart | Kolloquium |
| Einrichtung | Naturwissenschaftliche Fakultät II |
| Veranstalter | Institut für Physik / SFB 762 |
| Veranstaltungsort | IAMO (Leibniz-Institut für Agrarentwicklung in Transformationsökonomien) |
| Straße | Theodor-Lieser-Str. 2 |
| PLZ/Ort | 06120 Halle (Saale) |
| Ansprechpartner | Michael Strauch |
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| Telefon | +49 345-5525449 |
| michael.strauch@physik.uni-halle.de |
Beschreibung
Sprecher: Dr. Manuel Bibes (Unité Mixte de Physique CNRS/Thales und Université Paris-Saclay, Palaiseau, Frankreich)
Abstract:
The perovskite oxides family provides materials to efficiently generate and control spin polarized currents using respectively half-metallic ferromagnets such as mixed-valence manganites or ferroelectrics and multiferroics. More recently channel materials to transport spin information have also emerged. These include the LaAlO3/SrTiO3 two-dimensional electron system (2DES) which, in addition, possesses a gate-tunable spin-orbit coupling. A limitation of this system is however the minimum LaAlO3 thickness of 4 uc required for 2DES formation. In this presentation we will show that this thickness can be reduced if the LaAlO3 is capped by appropriate metals. We will also present different approaches to inject spins in these engineered LaAlO3/SrTiO3 2DES and introduce detection schemes taking advantage of efficient spin-charge conversion via interfacial spin-orbit effects.
| Webseite | http://www.physik.uni-halle.de/sfb762/kolloquien/ |
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