Spin dynamics in mesoscopic systems
Mesoscopic physics, a field of intense research over the last decade, deals with objects whose dimensions fall between the microscopic and macroscopic. Various mesoscopic objects can serve as components of the electronic and optoelectronic devices of the new generation, such as one-electron transistors or spin transistors. Undoubtedly, one of the most interesting research areas in mesoscopic physics is spin dynamics. Investigations in this field are stimulated by the possibility of creating nanodevices in which the spin of single particles can be precisely manipulated and controlled. An important topic in mesoscopic transport is intertwined with many-body correlations that manifest a broad number of intriguing phenomena. Therefore, the interplay between spin dynamics and many-body interactions is of special interest. In the EU-funded project 'Spin related phenomena in mesoscopic transport' (SPINMET), scientists focused on analysing spin-related phenomena of many-body systems in various types of mesoscopic structures. Main research topics included spin-interference phenomena in non-single connected mesoscopic objects, 0.7-anomaly and related phenomena in 1D ballistic transport, and new states of quantum spinor 1D liquids. Furthermore, scientists studied spin currents and spin accumulation in real mesoscopic structures. SPINMET's ultimate aim was to reveal the mechanisms governing mesoscopic spin dynamics and its interaction with many-body correlations, and to formulate recommendations for high-technology industries. Innovative products include silicon spin transistor without ferromagnetic contacts, resistance standards based on the quantum spin Hall effect and compact sources of terahertz irradiation.
Keywords
Spin dynamics, many-body system, spin-related phenomena, spin transistors, mesoscopic transport
