Formation of Tetrahedrally Close-Packed Structures in Tb-Fe and Co-Pd Nanocrystalline Films

被引：5

作者：

Kveglis, L. I. ^{[1
]}

Jarkov, S. M. ^{[1
]}

Bondarenko, G. V. ^{[1
]}

Yakovchuk, V. Yu. ^{[1
]}

Popel, E. P. ^{[1
]}

机构：

[1] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia

来源：

PHYSICS OF THE SOLID STATE | 2002年 / 44卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

Crystallization; Transmission Electron Microscopy; Explosive; Electron Diffraction; Atomic Structure;

D O I：

10.1134/1.1485018

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The crystal structure of Tb(30)Fe(70) and Co(50)Pd(50) nanocrystalline films with strong magnetic anisotropy perpendicular to the film plane (K(perpendicular to) similar to 10(6) erg/cm(3)) is investigated using electron diffraction and transmission electron microscopy. All the studied films in the initial nanocrystalline phase undergo an explosive crystallization with the formation of dendrite structures. It is demonstrated that, after crystallization, the Tb-Fe and Co-Pd films exhibit a tetrahedrally close-packed atomic structure that has no analogs among these materials in the equilibrium state. The internal stresses in the films under investigation are estimated from an analysis of the bend extinction contours in the electron microscope images. The inference is made that strong perpendicular magnetic anisotropy can be associated with magnetostriction anisotropy due to the specific features of the film structure. (C) 2002 MAIK "Nauka/Interperiodica".

引用

页码：1117 / 1121

页数：5