Formation of ferromagnetic FePt nanoparticles by ion implantation

被引：0

作者：

White, CW ^{[1
]}

Withrow, SP ^{[1
]}

Budai, JD ^{[1
]}

Boatner, LA ^{[1
]}

Sorge, KD ^{[1
]}

Thompson, JR ^{[1
]}

Beaty, KS ^{[1
]}

Meldrum, A ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

来源：

NANOPARTICULATE MATERIALS | 2002年 / 704卷

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Oriented ferromagnetic FePt narroparticles with the face-centered tetragonal L 10 structure were produced in Al2O3 single crystal hosts by ion implantation and annealing. Both the orientation and particle-size of the FePt particles depend strongly on the implantation conditions. The magnetic coercivities are extremely high, reaching values in excess of 20 kOe for Pt concentrations of similar to45% in the FePt alloy. Ferromagnetic FePt nanoparticles were also produced in amorphous SiO2 by ion implantation and annealing.

引用

页码：187 / 192

页数：6

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