Das Max-von-Laue-Kolloquium
Das Max-von-Laue-Kolloquium der Physikalischen Gesellschaft zu Berlin setzt eine alte Berliner Kolloquiums-Tradition fort, die auf das im Jahre 1843 gegründete Physikalische Kolloquium im Magnus-Haus zurückgeht, aus dem 1845 die Physikalische Gesellschaft zu Berlin hervorging. Aus dem alten Kolloquium im Magnus-Haus wurden die Kolloquien der Friedrich-Wilhelms-Universität in Berlin und der Physikalischen Gesellschaft zu Berlin, und diese Reihe setzte sich in der DDR fort, wo die Physikalische Gesellschaft der DDR zusammen mit der Akademie der Wissenschaften und der Humboldt-Universität zu Berlin Max-von-Laue-Kolloquien veranstaltete.
In diesem Max-von-Laue-Kolloquium spricht
Prof. Dr. Stuart Parkin,
Max-Planck-Institut für Mikrostrukturphysik, Halle (Saale).
Titel: Spintronics for massive data memory-storage — past, present and future
Im Anschluss an das Kolloquium findet ein Stehempfang auf der Galerie des Hermann-von-Helmholtz-Baus, Physikalisch-Technische Bundesanstalt, Abbestraße 2–12, 10587 Berlin, statt.
Zeit
Ort
Abbestraße 2–12
Moderation
Sprecher:innen
- Prof. Dr. Stuart Parkin
Spintronics is a field of research that harnesses the electron’s spin to create novel materials with exotic properties and devices especially those for storing digital data that is the lifeblood of many of the most valuable companies today. Spintronics has already had two major technological successes with the invention and application of spin-valve magnetic field sensors that allowed for more than a thousand-fold increase in the storage capacity of magnetic disk drives that store ~70% of all digital data today. Just recently, after almost a 25-year exploration and development period, a high performance nonvolatile Magnetic Random Access Memory, that uses magnetic tunnel junction memory elements, became commercially available. A novel spintronics memory-storage technology, Magnetic Racetrack Memory is on track to become the third major success of spintronics. Racetrack Memory is a non-volatile memory in which data is encoded in mobile chiral domain walls that are moved at high speeds by spin currents to and thro along synthetic antiferromagnetic racetracks. In this colloquium I will introduce the basic physics and especially the novel atomically-engineered materials that make possible these three spintronic technologies.
In diesem Max-von-Laue-Kolloquium spricht
Prof. Dr. Claus Ropers,
Georg-August-Universität Göttingen und Max-Planck-Institut für Multidisziplinäre Naturwissenschaften.
Titel: Probing Light-Matter Interactions with Electrons
Im Anschluss an das Kolloquium findet ein Stehempfang auf der Galerie des Hermann-von-Helmholtz-Baus, Physikalisch-Technische Bundesanstalt, Abbestraße 2–12, 10587 Berlin, statt.
Zeit
Ort
Abbestraße 2–12
Moderation
Over the past 100 years, electron beams have repeatedly advanced our understanding of the composition and structure of matter on the nanoscale. Combining electron microscopy with laser illumination of the sample yields manifold opportunities in studying optical excitations and transient phenomena, with applications ranging from materials science to quantum optics.
This talk will introduce principles and applications of ultrafast electron microscopy and diffraction. Examples include the study of structural phase transitions and the phase-resolved measurement of optical near fields. Moreover, recent technological developments facilitate coherent couplings of electron beams to photonic structures and cavities. Finally, electron-photon and electron-electron coincidence measurements reveal few-particle correlations and open up the field of free-electron quantum optics.
Impressionen vom Max-von-Laue-Kolloquium am 19.10.2023
