Search results for "Physik"

showing 3 items of 293 documents

Spin caloric transport from density-functional theory

2019

Spin caloric transport refers to the coupling of heat with spin transport. Its applications primarily concern the generation of spin currents and control of magnetisation by temperature gradients for information technology, known by the synonym spin caloritronics. Within the framework of ab initio theory, new tools are being developed to provide an additional understanding of these phenomena in realistic materials, accounting for the complexity of the electronic structure without adjustable parameters. Here, we review this progress, summarising the principles of the density-functional-based approaches in the field and presenting a number of application highlights. Our discussion includes th…

spintronicsMaterials scienceAcoustics and UltrasonicsSpintronicsCondensed matter physicsthermal spin torqueCaloric theory02 engineering and technologyPhysik (inkl. Astronomie)021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesspin Nernst effectSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialsspin Seebeck effectdensity functional calculations0103 physical sciencesspin caloritronicsDensity functional theoryCondensed Matter::Strongly Correlated Electronsmagneto-Seebeck effect010306 general physics0210 nano-technologySpin-½
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Progress in HAXPES performance combining full-field k-imaging with time-of-flight recording

2019

Journal of synchrotron radiation 26(6), 1996-2012 (2019). doi:10.1107/S1600577519012773

time-of-flight microscopeDiffractionNuclear and High Energy PhysicsMaterials scienceMicroscopePhoton550530 Physics02 engineering and technologyKinetic energy01 natural scienceslaw.inventionOpticslaw0103 physical sciencesddc:550HAXPES010306 general physicsInstrumentationMonochromatorRadiationk-spacebusiness.industry021001 nanoscience & nanotechnology530 PhysikResearch PapersBrillouin zoneWavelengthTime of flightBrillouin zone0210 nano-technologybusinessX-ray photoelectron diffraction
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Lagrangian matches between observations from aircraft, lidar and radar in an orographic warm conveyor belt

2020

Warm conveyor belts (WCBs) are important airstreams in extratropical cyclones, often leading to the formation of intense precipitation and the amplification of upper-level ridges. This study presents a case study that involves aircraft, lidar and radar observations in a WCB ascending from western Europe towards the Baltic Sea during the Hydrological Cycle in the Mediterranean Experiment (HyMeX) and T-NAWDEX-Falcon in October 2012, a preparatory campaign for the THORPEX North Atlantic Waveguide and Downstream Impact Experiment (T-NAWDEX). Trajectories were used to link different observations along the WCB, that is, to establish so-called Lagrangian matches between observations. To this aim, …

warm conveyor beltLidar010504 meteorology & atmospheric sciencesAtmosphärische SpurenstoffeOrographyInflowtracer01 natural sciencesFalconTroposphereobservationsClimatologyExtratropical cycloneOutflowPrecipitationWater cycleWolkenphysikGeology0105 earth and related environmental sciencesOrographic lift
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