THERMAL-STABILITY OF PT/CO MULTILAYERED FILMS

被引：12

作者：

SUMI, S ^{[1
]}

KUSUMOTO, Y ^{[1
]}

TERAGAKI, Y ^{[1
]}

TORAZAWA, K ^{[1
]}

TSUNASHIMA, S ^{[1
]}

UCHIYAMA, S ^{[1
]}

机构：

[1] NAGOYA UNIV,DEPT ELECTR,NAGOYA 46401,JAPAN

来源：

JOURNAL OF APPLIED PHYSICS | 1993年 / 73卷 / 10期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.352452

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The thermal stability of Pt/Co multilayered films with various underlayers has been studied by annealing up to 400-degrees-C. In Pt/Co films sputtered on glass or amorphous A1N underlayers, their coercivity and the squareness of magnetic hysteresis loops are degraded by annealing above 300-degrees-C. In contrast, in films sputtered on ZnO or Pt underlayers, the coercivity is remarkably increased by annealing at 300-degrees-C. The film with the ZnO underlayer shows a hysteresis loop with perfect squareness even after annealing at 400-degrees-C. The results of x-ray diffraction indicate that the ZnO underlayer not only enhances the fcc Pt/Co (111) orientation but also prevents the decay of the multilayered structure during annealing. The results of laser microannealing using a conventional disk drive system also indicate that the Pt/Co films with ZnO underlayers have superior resistance to laser damage.

引用

页码：6835 / 6837

页数：3