Magnetic structure and phase formation of magnetocaloric Mn-Fe-P-X compounds

This thesis presents a study of the crystal and magnetic structure, the magnetocaloric effect and related physical properties in Mn-Fe-P-X compounds. The influences of boron addition in (Mn,Fe)2(P,As) compounds have been studied. It is found that boron atoms occupy interstitial sites within the basal plane. First order magnetoelastic phase...

Vectorial diffraction of extreme ultraviolet light and ultrashort light pulses

In this thesis, we present applications in optics involving the diffraction theory of light for two advanced technologies. We have used a rigorous vectorial diffraction method to model: (i) the imaging of mask structures in extreme ultraviolet lithography, and (ii) ultrashort pulse propagation through small apertures. We have explained the...

Near-field optical reccording on cover protected discs

Near field optical data storage

This thesis describes research done at Philips Research on near-field optical data storage systems with a solid immersion lens.