Thermal stability of exchange bias nanostructures

被引：5
作者：
Vallejo-Fernandez, G. [1 ]
Chapman, J. N. [1 ]
机构：
[1] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland
来源：
JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 09期
关键词：
SIZE; DOTS;
D O I：
10.1063/1.3340451
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The thermal stability of an array of square exchange bias nanoelements has been investigated as a function of both the element size and the microstructure of the antiferromagnetic layer. The thermal stability of the nanostructures is measured in terms of their median blocking temperature < T(B)>. It is shown that, generally, < T(B)> is lower for nanostructures than for the equivalent thin film system. However, the opposite behavior can be observed depending on the measurement conditions, specifically the temperature of measurement and the setting temperature. These results emphasize the importance/limitations of the setting process in exchange bias systems. (C) 2010 American Institute of Physics. [doi:10.1063/1.3340451]
引用
收藏
页数：3
相关论文
共 12 条
  • [1] Size effects on exchange bias in sub-100 nm ferromagnetic-antiferromagnetic dots deposited on prepatterned substrates
    Baltz, V
    Sort, J
    Rodmacq, B
    Dieny, B
    Landis, S
    [J]. APPLIED PHYSICS LETTERS, 2004, 84 (24) : 4923 - 4925
  • [2] A model of the exchange bias setting process in magnetic read sensors
    Barker, J.
    Craig, B.
    Lamberton, R.
    Johnston, A.
    Chantrell, R. W.
    Heinonen, O.
    [J]. APPLIED PHYSICS LETTERS, 2009, 95 (02)
  • [3] Thermal phenomena in IrMn exchange biased systems
    Fernández-Outón, LE
    O'Grady, K
    Carey, MJ
    [J]. JOURNAL OF APPLIED PHYSICS, 2004, 95 (11) : 6852 - 6854
  • [4] Biodetection using magnetically labeled biomolecules and arrays of spin valve sensors (invited)
    Ferreira, HA
    Graham, DL
    Freitas, PP
    Cabral, JMS
    [J]. JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) : 7281 - 7286
  • [5] Magnetic biosensors for genetic screening of cystic fibrosis
    Lagae, L
    Wirix-Speetjens, R
    Liu, CX
    Laureyn, W
    Borghs, G
    Harvey, S
    Galvin, P
    Ferreira, HA
    Graham, DL
    Freitas, PP
    Clarke, LA
    Amaral, MD
    [J]. IEE PROCEEDINGS-CIRCUITS DEVICES AND SYSTEMS, 2005, 152 (04): : 393 - 400
  • [6] Magnetic recording: advancing into the future
    Moser, A
    Takano, K
    Margulies, DT
    Albrecht, M
    Sonobe, Y
    Ikeda, Y
    Sun, SH
    Fullerton, EE
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2002, 35 (19) : R157 - R167
  • [7] Size effects on exchange bias in polycrystalline Ni-Fe/Fe-Mn square dots
    Sasaki, Isao
    Nakatani, Ryoichi
    Ishimoto, Kazufumi
    Endo, Yasushi
    Shiratsuchi, Yu
    Kawamura, Yoshio
    Yamamoto, Masahiko
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 310 (02) : 2677 - 2679
  • [8] Size effects in submicron exchange bias square elements
    Vallejo-Fernandez, G.
    Chapmam, J. N.
    [J]. APPLIED PHYSICS LETTERS, 2009, 94 (26)
  • [9] Control of the setting process in CoFe/IrMn exchange bias systems
    Vallejo-Fernandez, G.
    Aley, N. P.
    Fernandez-Outon, L. E.
    O'Grady, K.
    [J]. JOURNAL OF APPLIED PHYSICS, 2008, 104 (03)
  • [10] Antiferromagnetic grain volume effects in metallic polycrystalline exchange bias systems
    Vallejo-Fernandez, G.
    Fernandez-Outon, L. E.
    O'Grady, K.
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (11)
12