Feed rod for growing magnetic single crystal, magnetic single crystal, and method of producing a magnetic single crystal

摘要

A feed rod for growing a magnetic single crystal having a composition represented by the formula (Y_3-aA_a)(Fe_5-b-cB_b)O_12-&agr;, wherein A is at least one element selected from the lanthanoide series, B is at least one element selected from the group consisting of Ga, Al, In, and Sc, c is a value for decreasing the Fe content from the stoichiometric amount, &agr; is a value for decreasing the oxygen content to satisfy the chemically neutral condition, and the relationships 0≦a≧0.5; 0≦b≧1.0; 0c≧0.15 and 0&agr; are satisfied.