The intrinsic magnetic properties of the tetragonal Sm_(14)Fe_(78-x)C_(8) system are investigated.In addition to the sudden drop of σ_(s) and T_(c), an ajiomalous variation of the lattice constants is found.The sign ...The intrinsic magnetic properties of the tetragonal Sm_(14)Fe_(78-x)C_(8) system are investigated.In addition to the sudden drop of σ_(s) and T_(c), an ajiomalous variation of the lattice constants is found.The sign of K_(1) changes from negative to positive between x=15 and 20 at 1.5 Kf thus the cone-type anisotropy becomes uniaxial correspondingly.The intrinsic magnetic hardness effect at low temperature is observed at high Mn content.展开更多
Using neutron diffraction and magnetic measurement,we have measured the canting angle of the iron spin in Nd_(15)Fe_(78)B_(7) compound with powder samples.The iron spins rotate away from the c-axis by 26°34'a...Using neutron diffraction and magnetic measurement,we have measured the canting angle of the iron spin in Nd_(15)Fe_(78)B_(7) compound with powder samples.The iron spins rotate away from the c-axis by 26°34'at 77K.展开更多
基金Supported in part by the Magnetics Open Lab.of Academia Sinica.
文摘The intrinsic magnetic properties of the tetragonal Sm_(14)Fe_(78-x)C_(8) system are investigated.In addition to the sudden drop of σ_(s) and T_(c), an ajiomalous variation of the lattice constants is found.The sign of K_(1) changes from negative to positive between x=15 and 20 at 1.5 Kf thus the cone-type anisotropy becomes uniaxial correspondingly.The intrinsic magnetic hardness effect at low temperature is observed at high Mn content.
文摘Using neutron diffraction and magnetic measurement,we have measured the canting angle of the iron spin in Nd_(15)Fe_(78)B_(7) compound with powder samples.The iron spins rotate away from the c-axis by 26°34'at 77K.
