Resistivity of the composite is much greater than that of pure SP under cryogenic temperature (77k), which is called Coulomb Blockade Effect.
复合材料低温下(77k)的体积电阻率明显高于纯sp，可以看作是库仑阻塞作用的结果。
2
To understand the change of the magnetic properties and mechanical properties of magnets after the subzero treatment, and the effect of sintered Nd-Fe-B magnet with the cryogenic treatment.