Multi-scale models of magnetic granular materials for hard disk drive technologies Event

Event details

This talk will review the current status of research into modern hard disk drive technology. The emphasis will be given on multi-scale computational models as a means to aid the characterization and optimization of relevant magnetic granular materials. The multi-scale nature follows from the need of resolving the details of magnetism of individual magnetic grains, which are typically of size of a few nanometres and essentially define the characteristic length scale of an information bit, while at the same time capturing collective statistical properties of billions of such grains. The required time scale range is also broad, extending from fast sub-nanosecond times relevant during the information readout/write process, to years guaranteeing the stability of recorded information. Special focus will be given on the state-of-the-art stochastic Langevin dynamics and time-quantified Monte-Carlo computational modelling techniques.