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TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

Tuesday, 28 November 2013
(at 14:15 in room HAL 115)
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Spintronic devices with molecular thin films

Luis E. Hueso

CIC nanoGUNE, San Sebastian, Spain
IKERBASQUE, Basque Foundation for Science, Spain

Molecular materials have recently caught the attention of spintronics, and significant efforts are being made towards their integration in this field [1,2]. One of their most attractive aspects for spintronic applications is the weakness of their spin scattering mechanisms, implying that the spin polarization of the carriers can be maintained for a very long time in these materials. Moreover, these materials might have tunable chemical properties, opening a way for the integration of synthetic chemistry into spintronic devices.
In this talk I shall focus on different spintronic devices based on molecular thin films. In the first part, I will show how bathocuproine molecules act as a spacer in hybrid ferromagnetic/organic spin valves [3]. In the second part I will introduce a hot-electron tunnel transistor with C60 fullerene as a collector [4]. In this device, hot-electron magnetoconductance values of up to 90% at room temperature have been recorded. Moreover, this device can operate as a solid-state spectroscopic tool for investigating the energy level alignment between molecules and metals.

[1] L.E. Hueso et al., Nature 445, 410 (2007)
[2] V. Dediu, L.E. Hueso et al., Nature Materials 8, 707 (2009)
[3] X. Sun et al., Nature Commun. (in press)
[4] M. Gobbi et al., Applied Physics Letters 101, 102404 (2012); M. Gobbi et al., (submitted)

Brief Bio:

Luis Hueso is currently Ikerbasque Research Professor and Leader of the Nanodevices group at CIC nanoGUNE in San Sebastian (Spain). He holds a PhD from the University of Santiago de Compostela (Spain) and postdoctoral experience in the UK (at the University of Cambridge) and Italy (at the Italian National Research Council). Prior taking his current position in 2009, he was a lecturer at the University of Leeds in the UK. The Nanodevices group at CIC nanoGUNE has current research interests in the fields of spintronics, nanofabrication, memory devices and transport in two-dimensional materials. The group participates in different EU-funded projects, including an ERC Starting Grant.

Announcement (pdf)

Invited by G. Cuniberti

Within the nanoSeminar

last modified: 2021.10.21 Thu
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