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Showing 1 to 4 of 4 for “"Tunnelspektroskopie"”.
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Bestimmung der Spinpolarisation durch supraleitende Tunnelspektroskopie
… eines Tunnelstroms durch supraleitende Tunnelspektroskopie. Ein wesentliches Bauteil der Spinelektronik ist der magnetische Tunnelkontakt. Der in diesen Bauteilen auftretende TMR-Effekt ist wesentlich von der Spinpolarisation des Tunnelstroms abhängig. Die direkte Messung der …
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Tunneling spectroscopy of highly ordered organic thin films
In this work, a Au(100) single crystal was used as substrate for organic molecular beam epitaxy. Highly ordered organic thin films of the molecules 3,4,9,10-perylenetetracarboxylic-3,4,9,10-dianhydrid (PTCDA) and hexa-peri-hexabenzo-coronene (HBC) as well as organic-organic heterostructures on …
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Novel materials for magnetic tunnel junctions
This thesis has been devoted to the understanding of spin polarized tunneling in magnetic tunnel junctions (MTJs). MTJs consist of two ferromagnetic layers separated by a thin (~2nm) insulating layer, usually amorphous Al2O3. The resistance of the structure depends on the relative orientation of …
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Electronic and vibrational properties of fullerenes and metallofullerenes studied by STM and STS
This thesis presents the results of a low temperature scanning tunneling microscopy (STM) study on fullerenes and endohedrally doped fullerenes. The measurements have been performed for three different molecules: C60, Ce@C82 and Ce2@C80, adsorbed on metal surfaces. The investigated molecules belong …