| 摘要 |
A cold accumulating material comprising magnetic substance expressed by the general formula: RCu1-xM1+x wherein R denotes at least one of rare earth element selected from the group consisting of Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Er, Ho, Tm and Yb, M denotes at least one element selected from the group consisting of Ag, Au, Al, Ga, In, Ge, Sn, Sb, Si, Bi, Ni, Pd, Pt, Zn, Co, Rh, Ir, Mn, Fe, Ru, Cr, Mo, W, V, Nb, Ta, Ti, Zr and Hf, and wherein Ni and Ge are not simultaneously selected, and x in atomic ratio satisfies a relation: -0.95 </= x </= 0.90. According to the above structure, there can be provided a cold accumulating material and a refrigerator using the cold accumulating material capable of exhibiting a remarkable and stable refrigerating performance at an extremely low temperature for a long time. <IMAGE> |
