TY - THES AB - The structural, magnetic and electrical properties of magnetic tunnel junctions (MTJs) are investigated, including the basics of tunnel magnetoresistance (TMR) and the used analytical and preparation tools. The first experimental chapter looks into the unidirectional anisotropy of exchange biased MTJs, the tunnel barrier formation by ECR plasma oxidation, the (annealing) temperature dependence, noise in MTJs and spin polarisation of ferromagnetic double layer electrodes. The second experimental chapter investigates MTJs with two tunnel barriers. DA - 2003 KW - Tunnelmagnetowiderstand KW - Aluminiumoxide KW - Tunnel magnetoresistance KW - Permalloy KW - Ferromagnetische Schicht KW - Tunnelkontakt LA - eng PY - 2003 TI - Preparation and characterisation of magnetic single and double barrier junctions UR - https://nbn-resolving.org/urn:nbn:de:hbz:361-4571 Y2 - 2024-11-25T06:07:56 ER -