Magnetic cooling materials, preparation and application

摘要

A material that can be used for magnetic refrigeration, wherein the material substantially has the general formula (ASUBY/SUBBSUB1-y/SUB)SUB2+delta/SUBCSUB1-x/SUBDSUBx/SUB) wherein A is selected from Mn and Co; B is selected from Fe and Cr; C and D are different and are selected from P, As, B, Se, Ge, Si and Sb; x and y each is a number in the range 0-1; and delta is a number from (-0.1)-(+0.1).