Functional particle-dispersed thin film, granular magnetic thin film and production processes thereof

A granular magnetic thin film comprising:

• a plurality of seed crystal particles having a seed crystalline orientation and dispersedly formed on a layer having a predetermined crystalline orientation and selected from one of the group consisting of a matrix and a primary coat, the seed crystal particles grown epitaxially such that the seed crystalline orientation is aligned with the predetermined crystalline orientation of the layer;
• ferromagnetic particles formed around the seed crystal particles by epitaxial growth and surrounding each of the seed crystal particles;
• and
• a segregating layer formed around the ferromagnetic particles to segregate and cover the ferromagnetic particles.

A process of producing a functional particle-dispersed thin film comprising:

• epitaxially growing atom particles as cores of seed crystal particles on a layer selected from the group consisting of a substrate and a primary coat, the layer having a layer crystalline orientation, the seed crystal particles being dispersed on the layer;
• epitaxially growing constitutive atoms of functional particles onto surfaces of the seed crystal particles such that the functional particles surround each of the seed crystal particles;
• and
• forming a segregating layer to surround each of the functional particles.

A process of producing a granular magnetic thin film comprising:

• epitaxially growing atom particles as cores of seed crystal particles on a layer selected from the group consisting of a substrate and a primary coat, the layer having a layer crystalline orientation, the seed crystal particles being dispersed on the layer;
• epitaxially growing constitutive atoms of ferromagnetic particles onto surfaces of the seed crystal particles such that the ferromagnetic particles surround each of the seed crystal particles;
• and
• forming a segregating layer to surround each of the ferromagnetic particles.