NanoMag Scientific/Technical Activities

SCIENTIFIC/TECHNICAL NANOMAG ACTIVITIES

The project is implemented in six work packages, which can be briefly summarized as follows:

WP 1 focused on the synthesis and characterization of rear earth/transition metal nanoparticles and thin films. In this work package a series of rare earth intermetallic alloys R2Fe14B have been produced and their potential application as permanent magnets / magnetic performance has been explored. Furthermore synthesis and characterization of LCMO samples with variable dopping levels x and of layered thin films of LCMO deposited on SrTiO3 substrates were accomplished. In addition, within this work package the physical properties and magnetism of an icosahedral Au-Al-Yb quasicrystal have been studied, soft Fe–Co nanoparticles have been synthesized and FePt samples have been fabricated in the form of graded media, thin films, nanowires and nanoparticles.

WP 2 involved the synthesis and functionalization of Molecule/Organic-based-Magnets. Within the framework of this work package fourteen novel clusters have been isolated and characterized by the use of alkoxy-containing ligands in Mn and Mn/Ni coordination chemistry. Two molecular based magnetic materials have been selected for thin film preparation. In addition, functionalized MOM were deposited on transition metal oxide based thin films using a combination of known deposition techniques to achieve monolayers fabrication.

WP 3 explored the functionalization and characterization of magnetic iron-based nanoparticles for biomedical applications. The tasks of this work package were accomplished with the synthesis and characterization (structural and magnetic) of hollow ferrite nanoparticles and of maghemite nanoparticles embedded in laponite nanodisks.

WP 4 was oriented in the fabrication and testing of prototype spintronic devices. In this context monolayers of molecular magnet complexes were fabricated by a technique combining Langmuir-Schaefer deposition and self-assemby.

WP 5 aimed at the fabrication/consolidation and characterization of nanocomposite magnets and was implemented by synthesizing magnetically hard Sm-Co nanoparticles and investigating in detail their structural and magnetic properties.

Finally the main objective of work package 6 was the Laboratory Testing of Magnetic Hyperthermia and Relaxivity efficiency for MRI. Towards that aim ferrofluids comprising iron oxide nanoparticles immobilized on nano-clay discs have been prepared and the dependence of the specific absorption rate (SAR) on iron oxide concentration and electromagnetic field amplitude was thoroughly investigated.