The activities of the TMR Network were funded for 60 months until September 31, 2001. Find here the final report and the summary report.
The third annual meeting of this network will be held in Aussois, France from March 27th till April 1st. It will bring together the different groups, connected by this network, to inform each other about the current status of their work. The report on the mid-term review, which takes place at the same time can be found here.
A hands-on course on the calculation of dichroism spectra was hold at the Daresbury Laboratories from April 26th to May 1st. Its main purpouse will be to teach experimentalists the techniques required to obtain theoretical spectra.
This will be a three to four days workshop with focus on longer invited lectures of prominent researchers in the fields of magnetism of surfaces and interfaces. In addition to the more educational part of the workshop there will be a few oral contributions, but most contributions will be presented in poster sessions. The scope of the conference will cover theoretical and experimental aspects of thin film magnetism. Special emphasis will be put on magnetoanisotropy; spin and orbital magnetism; magnetostrictive effects; magneto recording phenomena (magneto optical effect and GMR); effects of temperature; structural effects; interface roughness. For further information see www.fysik4.fysik.uu.se/~maw
The magnetism of transition metal systems and lanthanide systems is now fairly well understood, where d and f electrons can be described in a delocalized and localized model, respectively. On the other hand, actinide systems do not fit in such a description. The localization of the 5f is in between that of the 3d and 4f and the strong spin-orbit interaction necessitates a relativistic approach. Furthermore, electron correlation effects play a major role in these compounds. Recently, it has become possible to determine element- specific magnetic moments using neutron diffraction and x-ray scattering and absorption. The latter technique makes it even possible to separate the orbital and spin contribution to the total magnetic moment. The results are very interesting but difficult to reproduce with present state-of-art calculations. Not only a very large orbital polarization but also a large magnetic dipole term has been measured in cubic compounds, such as US. This allows for severe testing of the extra terms included in band theory to account for orbital polarization. It is also clear that deeper insight in magnetism can be obtained by studying the unusual behaviour of the actinides. Despite the fact that actinides for health reasons will find less application in technological market products, the understanding of their magnetic and electronic properties will no doubt provide key elements for a general description of electron correlation and relativistic effects. For more information take a look at the web-page or e-mail w.m.temmerman@dl.ac.uk