X-ray photoelectron spectroscopy analysis as a tool to assess factors influencing magnetic anisotropy type in Co/MgO system with gold interlayer

被引：15

作者：

Demchenko, Iraida N. ^{[1
]}

Syryanyy, Yevgen ^{[1
]}

Melikhov, Yevgen ^{[2
]}

Nittler, Laurent ^{[1
]}

Gladczuk, Leszek ^{[1
]}

Lasek, Kinga ^{[1
]}

Cozzarini, Luca ^{[3
]}

Dalmiglio, Matteo ^{[3
]}

Goldoni, Andrea ^{[3
]}

Konstantynov, Pavlo ^{[1
]}

Chernyshova, Maryna ^{[4
]}

机构：

[1] Polish Acad Sci, Inst Phys, Aleja Lotnikow 32-46, PL-02668 Warsaw, Poland

[2] Cardiff Univ, Sch Engn, Newport Rd, Cardiff CF24 3AA, S Glam, Wales

[3] Elettra Sincrotrone Trieste SCpA, Str Statale 14, Trieste, Italy

[4] Inst Plasma Phys & Laser Microfus, 23 Hery Str, Warsaw, Poland

来源：

SCRIPTA MATERIALIA | 2018年 / 145卷

关键词：

FILM LAYERED STRUCTURES; MULTILAYERS; INTERFACE; MIGRATION; STATE; PD/CO; XPS;

D O I：

10.1016/j.scriptamat.2017.10.006

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

X-ray photoelectron spectroscopy (XPS) studies of Au/Co/Au(0.3 nm)/MgO and Au/Co/MgO systems were conducted in order to monitor the electronic structure modification at Co/MgO interface with/without gold interlayer. A detailed analysis of Co 2p states revealed that the amount of minor oxygen contribution at Co/MgO interface decreased after the Au interlayer was added. The obtained XPS results together with density functional theory (DFT) allowed explanation of the increase of surface anisotropy energy in the sample with the gold interlayer in terms of (i) noble and transitional metal d-d orbital hybridization; (ii) interfacial Co 3d and O 2p; and (iii) interface imperfection. (C) 2017 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.

引用

页码：50 / 53

页数：4

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