6533b851fe1ef96bd12aa034
RESEARCH PRODUCT
Time-resolved photoemission electron microscopy of magnetic field and magnetisation changes
Sergej A. NepijkoAndreas OelsnerA. KuksovC.m. SchneiderA. KrasyukGerd Schönhensesubject
Physicsbusiness.industrySynchrotron radiationGeneral ChemistryLaserMicrostructureMicrostriplaw.inventionMagnetic fieldMagnetizationPhotoemission electron microscopyOpticslawGeneral Materials SciencebusinessExcitationdescription
Owing to its parallel image acquisition, photoemission electron microscopy is well suited for real-time observation of fast processes on surfaces. Pulsed excitation sources like synchrotron radiation or lasers, fast electric pulsers for the study of magnetic switching, and/or time-resolved detection can be utilised. A standard approach also being used in light optical imaging is stroboscopic illumination of a periodic (or quasi-periodic) process. Using this technique, the time dependence of the magnetic field in a pulsed microstrip line has been imaged in real time exploiting Lorentz-type contrast. Similarly, the corresponding field-induced changes in the magnetisation of cobalt microstructures deposited on the microstrip line have been observed exploiting magnetic X-ray circular dichroism as a contrast mechanism. The experiment has been performed at the UE 56/1-PGM at BESSY II (Berlin) in the single-bunch mode.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-04-01 | Applied Physics A: Materials Science & Processing |