FIELD: processes for modifying porous carriers such as photon crystals on base of SiO2 by means of inclusions phases of ferromagnetic metal or their oxides, possibly in functional micro-electronics, development of different type of magneto-optic systems for information recording, as sensing members of weak magnetic field pickups.
SUBSTANCE: method comprises steps of successively impregnating sample of photo crystal by solutions of ionic salts of metals; treating it in solution of oxalic acid; then annealing in air at 600 - 700 K for 1 - 2 h for further reduction at 700 K in hydrogen for 0.5 - 1 h or baking in inert atmosphere at 700 - 800 K for 1 - 2 h. Usage of ferromagnetic phases including such metals as Fe, Co, Ni and their oxides allows produce materials with magneto-optic properties.
EFFECT: volume occupation, namely of near-surface layers of photon crystal with inclusions of ferromagnetic phases.
1 dwg
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