| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magnetic refrigeration material which is a primary magnetic transition substance and is a ferromagnetic substance. <P>SOLUTION: The magnetic refrigeration material contains a perovskite manganese nitride crystal comprising a composition indicated by a general formula (1) (Mn<SB>1-x</SB>A<SB>x</SB>)<SB>3</SB>MN, (in the formula, A is one kind or more selected from Ti, V, Cr, Mn, Fe, Zr, Nb, Mo, Tc, Ru, Hf, Ta, W, Re and Os (provided that, when one kind of A is Mn, A is two kinds or more), M is one kind or more selected from Mg, Al, Si, Sc, Co, Ni, Cu, Zn, Ga, Ge, As, Rh, Pd, Ag, Cd, In, Sn, Sb, Ir, Pt, Au, Hg, Tl, Pb and Bi, x is 0<x≤0.2, and a part of N may be replaced by one kind or more of H, B, C and O). <P>COPYRIGHT: (C)2009,JPO&INPIT |
