**NEW** Nanoscale Magnetism in TEM

The size of each magnetic element in magnetic storage devices becomes smaller quickly since larger data storage has been demanded in information technology. Recently, a new magnetic material hosing chiral skyrmions, which occur at the nanometre scale, has been paid great attention for next generation memory and logic devices. Therefore it is important to understand magnetic influence from neighbouring elements and unusual magnetic behaviour on nanoscale. In the project we use primarily off-axis electron holography in transmission electron microscopy (TEM) to study nanoscale magnetic interactions in magnetic nanoparticles or thin films, as well as micromagnetic simulation software for a better understanding. In addition, the development/improvement of nanoscale magnetic imaging is also a target in this project. The project would preferably require a basic knowledge of transmission electron microscopy and/or magnetism.

Learning Objectives:

  • Learning to use electron holography in TEM
  • Gaining a knowledge of fundamental nanoscale magnetism
  • Quantitative image process of electron holograms

Open to: Bachelor and Master students

Magnetic induction map of three NiFe/Cu/Co thin-film pseudo-spin-valve elements at remanence recorded using electron holography after the application of a 42.4-mT magnetic field. The left element has the parallel magnetic configuration between the two magnetic layers, while the remaining elements have the antiparallel configuration.

Contact

Takeshi Kasama
Senior Researcher
DTU Nanolab
+45 45 25 64 75

Contact

Marco Beleggia
Associate Professor
DTU Cen
+45 45 25 31 47