Objective A renewed interest in Ge has been sparked by the prospects of exploiting its lower effective mass and higher hole mobility to improve the performance of transistors. Ge emerges also as a promising material in the field of spin qubits, as its coherence times are expected to be very long. Finally, it has been proposed that strained Ge nanowires show an unusually large spin orbit interaction, making them thus suitable for the realization of Majorana fermions. In view of these facts, one is able to envision a new era of Ge in information technology.The growth of Ge nanocrystals on Si was reported for the first time in 1990. This created great expectations that such structures could provide a valid route towards innovative, scalable and CMOS-compatible nanodevices. Two decades later the PI was able to realize the first devices based on such structures. His results show that Ge self-assembled quantum dots display a unique combination of electronic properties, i.e. low hyperfine interaction, strong and tunable spin-orbit coupling and spin selective tunneling. In 2012, the PI’s group went a step further and realized for the first time Ge nanowires monolithically integrated on Si substrates, which will allow the PI to move towards double quantum dots and Majorana fermions. In view of their exceptionally small cross section, these Ge wires hold promise for the realization of hole systems with exotic properties.Within this project, these new wires will be investigated, both as spin as well as topological qubits. The objective of the present proposal is mainly to: a) study spin-injection by means of normal and superconducting contacts, b) study the characteristic time scales for spin dynamics and move towards electrical spin manipulation of holes, c) observe Majorana fermions in a p-type system. The PI’s vision is to couple spin and topological qubits in one “technological platform” enabling thus the coherent transfer of quantum information between them. Fields of science natural sciencesphysical sciencestheoretical physicsparticle physicsfermionsengineering and technologynanotechnologynano-materialsnanocrystalsnatural sciencesphysical scienceselectromagnetism and electronicsspintronicsengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcomputer hardwarequantum computersnatural scienceschemical sciencesinorganic chemistrymetalloids Programme(s) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) ERC-SG-PE3 - ERC Starting Grant - Condensed matter physics Call for proposal ERC-2013-StG See other projects for this call Funding Scheme ERC-SG - ERC Starting Grant Host institution INSTITUTE OF SCIENCE AND TECHNOLOGY AUSTRIA EU contribution € 1 371 136,07 Address Am Campus 1 3400 Klosterneuburg Austria See on map Region Ostösterreich Niederösterreich Wiener Umland/Nordteil Activity type Higher or Secondary Education Establishments Principal investigator Georgios Katsaros (Dr.) Administrative Contact Barbara Abraham (Ms.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data Beneficiaries (2) Sort alphabetically Sort by EU Contribution Expand all Collapse all INSTITUTE OF SCIENCE AND TECHNOLOGY AUSTRIA Austria EU contribution € 1 371 136,07 Address Am Campus 1 3400 Klosterneuburg See on map Region Ostösterreich Niederösterreich Wiener Umland/Nordteil Activity type Higher or Secondary Education Establishments Principal investigator Georgios Katsaros (Dr.) Administrative Contact Barbara Abraham (Ms.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data UNIVERSITAT LINZ Participation ended Austria EU contribution € 303 883,93 Address ALTENBERGER STRASSE 69 4040 Linz See on map Region Westösterreich Oberösterreich Linz-Wels Activity type Higher or Secondary Education Establishments Administrative Contact Susanne Schwind (Mrs.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data