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Din sökning på "phd position spin wave generation in quantum materials" gav 26185 sökträffar

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Semiconductor nanostructure based devices provide new opportunities for contributing to a sustainable energy usage. This includes harvesting of energy (solar cells) and saving of energy, e.g. in lighting (light-emitting diodes, LEDs) and transfer of energy (power devices). However, development and improvement of nanostructure devices requires thorough characterization and understanding on a singleSemiconductor nanostructure based devices provide new opportunities for contributing to a sustainable energy usage. This includes harvesting of energy (solar cells) and saving of energy, e.g. in lighting (light-emitting diodes, LEDs) and transfer of energy (power devices). However, development and improvement of nanostructure devices requires thorough characterization and understanding on a single

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A simulation scheme based on nonequilibrium Green's functions for biased periodic semiconductor heterostructure devices is presented in detail. The implementation can determine current and optical gain both for small and large optical fields. Specific results for superlattices, quantum cascade lasers, and quantum cascade detectors are shown which demonstrate the capabilities of the approach.

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The development of materials that are non-magnetic in the bulk but exhibit two-dimensional (2D) magnetism at the surface is at the core of spintronics applications. Here, we present the valence-fluctuating material EuIr2Si2, where in contrast to its non-magnetic bulk, the Si-terminated surface reveals controllable 2D ferromagnetism. Close to the surface the Eu ions prefer a magnetic divalent confi

Strategiska forskningsområden

Lunds universitet är engagerat i 11 av Sveriges 20 nationella strategiska forskningsområden (SFO:er). De strategiska forskningsområdena främjar innovativt tänkande och risktagande inom forskningen och kännetecknas av långsiktiga visioner och tvärvetenskaplighet.De tar sig an aktuella och komplexa utmaningar på djupet, ur flera perspektiv, inom områden som hälsa, teknik, miljö, klimat och samhälle.

https://www.lu.se/forskning/fokusomraden/strategiska-forskningsomraden - 2026-10-04

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Micro-droplets with excellent physical properties and size effects are widely used in different fields. Peristaltic pumps are often used for droplet generation. The thrust force of pumps is periodic as a periodic disturbance when the time scale is short enough. Numerical simulation based on a validated model was applied to study the periodic disturbance effects on droplet generation in a cross-jun