| abstract |
(57) [Summary] [Structure] Fe 100-x Rh x (48 ≦ x ≦ 54, where x is an atom) ic%) as a main component, and 0 to 5 atomic% Ir, Pt, P A magnetic fluid comprising an alloy magnetic fine particle to which d, Ru, Os are added alone or in plural, and a dispersion medium solution. [Effect] It has a temperature change of magnetization which is not present in conventional magnetic fluids, and has advantages such as improvement in function as a magnetic fluid and expansion to new application areas such as sensors and optical switches. |