ORGANIC-INORGANIC COMPOSITE MAGNETIC MATERIAL AND ITS MANUFACTURE

摘要

PROBLEM TO BE SOLVED: To provide organic-inorganic composite magnetic material having superparamagnetism or ferromagnetism in which organic radical molecules are chemically adsorbed on a metal surface and formed. SOLUTION: In this magnetic material, organic radical molecules bearing localized spin caused by unpaired electrons are chemically adsorbed on a metal surface and formed. The localized spin of the organic radical adsorbed on the metal surface shows superparamagnetism or ferromagnetism which are formed by magnetic interaction with conduction electrons of metal. The metal is gold fine particles which are composed of organic radical chemical adsorption type gold fine particles formed by chemical adsorption of thiol coordination type organic radical molecules on a metal particle surface.