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Project

Project type/Form of grant
Grant to research environment
Title [sv]
Magnetism och nanospintronik i halvledarenanostrukturer, topologiska isolatorer och molekylära magneter
Title [en]
Magnetism and nanospintronics in semiconductor nanostructures, topological insulators and molecular magnets
Abstract [en]
This proposal deals with the electronic, magnetic and transport properties of structures consisting of one or a few magnetic atoms precisely placed at a given position in the crystal of a quantum material, or arranged into a molecular matrix. Specifically we will theoretically study magnetic dopants at semiconductor surfaces, focusing on the time-dependent dynamics of single spins and the spin-dependent transport through a single-atom transistor. We will also investigate both theoretically and experimentally magnetic doped semiconductor nanowires (NWs) with the aim of achieving tunable ferromagnetism. We will develop theoretical modeling to describe magnetic dopants on the surface of a topological insulator, ranging from individual atoms to a finite concentration leading to a broken time-reversal-symmetry magnetic state. Finally, we will study quantum transport through special classes of molecular magnets functionalized onto surfaces. Strong emphasis of the research is on the control of the magnetic properties via electric fields and currents. Theoretical tools include microscopic tight-binding models, density-functional theory, the time-dependent Schrödinger equation, quantum transport via master equations and non-equilibrium Green functions. Experiments on NWs are based on a novel implantation technique. The proposal topics involve fundamental issues in nanophysics that must be addressed to realize atomic-scale applications in spintronics and quantum information processing.
Principal InvestigatorCanali, Carlo M.
Coordinating organisation
Linnaeus University
Funder
Period
2015-01-01 － 2018-12-31
National Category
Condensed Matter Physics
Identifiers
DiVA, id: project:104Project, id: 2014-04785_VR

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