Materialwissenschaft und Werkstofftechnik (ER-C-2)

Wir untersuchen Materialien for Li-Ionen-Batterien auf allen Längenskalen und helfen, ihre Eigenschaften in Hinblick auf Ladungsdichte , Alterung und Zuverlässigkeit zu optimieren.

Weg zu weiterer Miniaturisierung von FeRAM

Jülich / Aachen, 2 February 2021. Ferroelectric Random Access Memory, or FeRAM for short, offers both working memory and data storage in one. This saves on the time and energy needed by conventional computers to transport data between the two units. In addition, the saved data is retained even without a power supply. The write performance and service life of these components are already outstanding and the first FeRAMs are already in use, for example in chip cards or RFID tags. However, comparatively small amounts of data can as yet be stored on a FeRAM, as the space required for storing individual bits is too large.

PGI Kolloquium: Prof. Dr. Michael Bauer, Institute of Experimental and Applied Physics, Kiel University, Kiel, Germany

Electron-phonon interaction is one of the most fundamental quasiparticle interaction in solids governing for instance transport and thermodynamic properties of materials, but being also responsible for unconventional phenomena such as low-temperature superconductivity and the formation of charge-ordered phases. In my talk I will present and discuss two recent time- and angle resolved photoemission studies of our group in which we addressed, how electron-phonon interactions can affect electron and spin degrees of freedom on ultrafast timescales in two different types of 2D transition metal dichalcogenides.