Patent ID: 8769965

Claim:
A magnetic refrigeration material, comprising: at least one selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb by a range of 4 to 15 atomic percentages, wherein La is present; at least one selected from the group consisting of Fe, Co, Ni, Mn, and Cr by a range of 60 to 93 atomic percentages, wherein Fe is present; at least one selected from the group consisting of Si, C, Ge, Al, Ga, and In by a range of 2.9 to 23.5 atomic percentages, wherein Si is present; and at least one selected from the group consisting of Ta, Nb, and W by a range of 0.1 to 1.5 atomic percentages, wherein said magnetic refrigeration material includes a NaZn 13 type crystal structure as a main phase and a generation ratio of the NaZn 13 type crystal structure is equal to or more than 70%.