On the interface magnetism of thin oxidized Co films: orbital and spin moments

被引：13

作者：

Mulders, A. M. ^{[1
,2
,3
]}

Loosvelt, H. ^{[4
]}

Rodriguez, A. Fraile ^{[1
,5
]}

Popova, E. ^{[4
,6
]}

Konishi, T. ^{[7
]}

Temst, K. ^{[4
]}

Karis, O. ^{[1
]}

Arvanitis, D. ^{[1
]}

Van Haesendonck, C. ^{[4
]}

机构：

[1] Uppsala Univ, Dept Phys, S-75121 Uppsala, Sweden

[2] Curtin Univ Technol, Dept Imaging & Appl Phys, Perth, WA 6845, Australia

[3] Australian Nucl Sci & Technol Org, Bragg Inst, Lucas Heights, NSW 2234, Australia

[4] Katholieke Univ Leuven, Lab Solid State Phys & Magnetism, B-3001 Louvain, Belgium

[5] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland

[6] Inst Magnetism NASU, UA-03142 Kiev, Ukraine

[7] Chiba Univ, Dept Chem, Fac Sci, Inage Ku, Chiba 2638522, Japan

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 12期

关键词：

RAY CIRCULAR-DICHROISM; EXCHANGE-BIASED CO/COO; LAYERS; MAGNETIZATION; MULTILAYERS; ANISOTROPY; BILAYERS;

D O I：

10.1088/0953-8984/21/12/124211

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

An x-ray magnetic circular dichroism study of a polycrystalline Co/CoO bilayer is presented. Using both the chemical specificity and surface sensitivity in the core level techniques, we find that uncompensated Co2+ spin moments participate in the remanent ferromagnetic response of the bilayer that has oxygen nearest neighbors. These are likely located at the Co/CoO interface. As intermixing of magnetic species is not present in Co/CoO, it is concluded that the observed interface moments are due to interface roughness. Given their direction, these moments appear to not directly correlate to the exchange bias in these bilayers.

引用

页数：6

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