Structural Peculiarities and Magnetic Properties of Nanoscale Terbium in Tb/Ti and Tb/Si Multilayers  

作　　者：A. V. Svalov V. O. Vas'kovskiy G. V. Kurlyandskaya J. M. Barandiaran I. Orue N. N. Schegoleva A. N. Sorokin 

机构地区：[1]Ural State University, Lenin Avenue 51, 620083, Ekaterinburg, Russia [2]Universidad del Pals Vasco UPV-EHU, Facultad de Ciencias, Depto Electricidad y ElectrOnica, Apdo. 644, 48080 Bilbao, Spain [3]Institute of Metal Physics, Ural Branch of RAS, Kovalevskaya str. 18, 620219, Ekaterinburg, Russia

出　　处：《Chinese Physics Letters》2006年第1期196-199,共4页中国物理快报（英文版）

摘　　要：The structure and the magnetic properties of rf-sputtered nauoscale Tb in [Tb/Ti]n and [Tb/Si] multilayers have been studied experimentally. It is found that the structure of Tb layers changes, transforming from a fine-crystalline state of Tb into an amorphous state as the magnetic layer thickness decreases. The observed displacement of a magnetic ordering temperature to the lower temperature range and the shift of magnetic hysteresis obtained in the ZFC-FC terms may be caused by the size effect and the amorphization. Both the first and the second suppress the exchange interaction and decrease the crystalline magnetic anisotropy. The type of material of nonmagnetic spacers between the Tb layers plays a certain role in these changes.The structure and the magnetic properties of rf-sputtered nauoscale Tb in [Tb/Ti]n and [Tb/Si] multilayers have been studied experimentally. It is found that the structure of Tb layers changes, transforming from a fine-crystalline state of Tb into an amorphous state as the magnetic layer thickness decreases. The observed displacement of a magnetic ordering temperature to the lower temperature range and the shift of magnetic hysteresis obtained in the ZFC-FC terms may be caused by the size effect and the amorphization. Both the first and the second suppress the exchange interaction and decrease the crystalline magnetic anisotropy. The type of material of nonmagnetic spacers between the Tb layers plays a certain role in these changes.

关 键 词：FERROMAGNETIC-RESONANCE FILMS TEMPERATURE DEPENDENCE THICKNESS LAYERS 

分 类 号：TB383[一般工业技术—材料科学与工程]