XPS analyses of Ta/MgOx/Ni81Fe19/MgOx/Ta films

被引：8
|
作者：
Li, Minghua [1 ]
Han, Gang [1 ]
Liu, Yang [1 ]
Feng, Chun [1 ]
Wang, Haicheng [1 ]
Teng, Jiao [1 ]
Yu, Guanghua [1 ]
机构：
[1] Univ Sci & Technol Beijing, Dept Mat Phys & Chem, Beijing 100083, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 24期
基金：
美国国家科学基金会;
关键词：
Magnetic films; X-ray photoelectron spectroscopy; MgOx; GIANT MAGNETORESISTANCE; SPIN;
D O I：
10.1016/j.apsusc.2012.05.152
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ta/MgOx/Ni81Fe19/MgOx/Ta films were prepared by magnetron sputtering. The anisotropic magnetoresistance (AMR) increases dramatically after annealing. The chemical states of Ta and MgOx at the interface of the NiFe/MgOx/Ta films, which were prepared at the different technological conditions, were analyzed by X-ray photoelectron spectroscopy (XPS). The results show that the AMR of the films is related to the chemical states of MgOx. The chemical states of Mg are different when MgOx is prepared at different technological conditions. Therefore, increasing the AMR is beneficial when more Mg2+ ions are present in the MgOx films. (C) 2012 Elsevier B. V. All rights reserved.
引用
收藏
页码：9589 / 9592
页数：4
相关论文
共 50 条
  • [21] XPS analyses on Ta/Au/NiFe/NiO/Ta films
    Li, Minghua
    Yang, Kang
    Zhang, Min
    Liu, Yang
    Ding, Lei
    Teng, Jiao
    Yu, Guanghua
    SURFACE AND INTERFACE ANALYSIS, 2015, 47 (04) : 540 - 544
  • [22] Electrical spin injection in Ni81Fe19/Al/Ni81Fe19 with double tunnel junctions
    Miura, K
    Ono, T
    Nasu, S
    Okuno, T
    Mibu, K
    Shinjo, T
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2005, 286 : 142 - 145
  • [23] Structural and magnetic analysis of Ni81Fe19/Ag multilayers with ultrathin Ni81Fe19 sublayers
    Chladek, M
    Dorner, C
    Matner, M
    Hoffmann, H
    Valvoda, V
    JOURNAL OF PHYSICS-CONDENSED MATTER, 1997, 9 (22) : 4557 - 4574
  • [24] Influence of tantalum underlayer on magnetization dynamics in Ni81Fe19 films
    Kwon, Jae Hyun
    Deorani, Praveen
    Yoon, Jungbum
    Hayashi, Masamitsu
    Yang, Hyunsoo
    APPLIED PHYSICS LETTERS, 2015, 107 (02)
  • [25] Precessional frequency tuning in Ni81Fe19/(Ni81Fe19)1-xEux (50 nm) bilayers
    Cheng, LL
    Song, HJ
    Bailey, WE
    IEEE TRANSACTIONS ON MAGNETICS, 2004, 40 (04) : 2350 - 2352
  • [26] Spin-Seebeck effects in Ni81Fe19/Pt films
    Uchida, K.
    Ota, T.
    Harii, K.
    Takahashi, S.
    Maekawa, S.
    Fujikawa, Y.
    Saitoh, E.
    SOLID STATE COMMUNICATIONS, 2010, 150 (11-12) : 524 - 528
  • [27] Effect of the Ni81Fe19 thickness on the magnetic properties of Ni81Fe19/Fe50Co50 bilayers
    Kotapati, S.
    Javed, A.
    Reeves-McLaren, N.
    Gibbs, M. R. J.
    Morley, N. A.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2013, 331 : 67 - 71
  • [28] Effects of ZnO layer on anisotropy magnetoresistance of Ni81Fe19 films
    Wang, Shuyun
    Gao, Yuanmei
    Gao, Tiejun
    He, Yuan
    Zhang, Hui
    Yao, Yuan
    MODERN PHYSICS LETTERS B, 2014, 28 (06):
  • [29] DISTRIBUTION OF BLOCKING TEMPERATURE IN BILAYERED NI81FE19/NIO FILMS
    SOEYA, S
    IMAGAWA, T
    MITSUOKA, K
    NARISHIGE, S
    JOURNAL OF APPLIED PHYSICS, 1994, 76 (09) : 5356 - 5360
  • [30] Anisotropic magnetoresistance of Ni81Fe19 films on NiFeNb buffer layer
    Wang, Shuyun
    Wang, Cuntao
    Gao, Yuanmei
    Gao, Tiejun
    Hu, Guixiang
    Zhang, Hui
    JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 575 : 419 - 422
12345