MAGNETIC AND STRUCTURAL INSTABILITIES OF FERROMAGNETIC AND ANTIFERROMAGNETIC FE/CU(100)

被引：38

作者：

LI, DQ ^{[1
]}

FREITAG, M ^{[1
]}

PEARSON, J ^{[1
]}

QIU, ZQ ^{[1
]}

BADER, SD ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 76卷 / 10期

关键词：

D O I：

10.1063/1.358284

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Fe wedges epitaxially grown on Cu(100) have been employed to investigate the interplay between magnetic and structural instabilities. 2-4 monolayer (ML) clean Fe films grown at room temperature are ferromagnetic with perpendicular easy axes. bcc Fe films≳11 ML thick are ferromagnetic with in-plane easy axes. Most importantly, 6-11 ML fcc Fe films are antiferromagnetic and have a ferromagnetic surface. Films grown below 200 K and annealed to room temperature do not exhibit the antiferromagnetic phase, but remain ferromagnetic and undergo a spin-reorientation transition from perpendicular to in plane at ∼6 ML. A new phase diagram for Fe/Cu(100) is proposed as a function of thickness and growth temperature. In addition, an impurity-stabilized layer-by-layer growth that persists to 30-40 ML Fe is also reported.

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收藏

页码：6425 / 6427

页数：3

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