Effect of grain cutting in exchange biased nanostructures

被引：5

作者：

Carpenter, R. ^{[1
]}

Vick, A. J. ^{[1
]}

Hirohata, A. ^{[2
,3
]}

Vallejo-Fernandez, G. ^{[1
]}

O'Grady, K. ^{[1
]}

机构：

[1] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

[2] Univ York, Dept Elect, York YO10 5DD, N Yorkshire, England

[3] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 17期

基金：

英国工程与自然科学研究理事会;

关键词：

SIZE;

D O I：

10.1063/1.4868328

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of sub-500 nm patterning on exchange bias in thin films has been studied. Experimental results are compared to the York model of exchange bias which has been modified to take into account grain cutting at the edges of the structures. Exchange bias (H-ex) was found to decrease with element size. The form of the variation of Hex with element size matches that of the experiment. Numerical agreement has not been achieved for Hex. However, the predictions of the median blocking temperature < T-B > agree with experiment. The disagreement for H-ex is attributed to edge roughness of the structures which will affect the quality of the interface which is dominant in structures of this scale. (C) 2014 AIP Publishing LLC.

引用

页数：3

共 11 条

[1] Tailoring size effects on the exchange bias in ferromagnetic-antiferromagnetic <100 nm nanostructures -: art. no. 117201
Baltz, V
Sort, J
Landis, S
Rodmacq, B
Dieny, B
[J]. PHYSICAL REVIEW LETTERS, 2005, 94 (11)
[2] Influence of edges on the exchange bias properties of ferromagnetic/antiferromagnetic nanodots
Baltz, V.
Gaudin, G.
Somani, P.
Dieny, B.
[J]. APPLIED PHYSICS LETTERS, 2010, 96 (26)
[3] Direct comparison of domain wall behavior in permalloy nanowires patterned by electron beam lithography and focused ion beam milling
Basith, M. A.
McVitie, S.
McGrouther, D.
Chapman, J. N.
Weaver, J. M. R.
[J]. JOURNAL OF APPLIED PHYSICS, 2011, 110 (08)
[4] NEW MAGNETIC ANISOTROPY
MEIKLEJOHN, WH
BEAN, CP
[J]. PHYSICAL REVIEW, 1956, 102 (05): : 1413 - 1414
[5] A new paradigm for exchange bias in polycrystalline thin films
O'Grady, K.
Fernandez-Outon, L. E.
Vallejo-Fernandez, G.
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2010, 322 (08) : 883 - 899
[6] 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
[7] The discovery, development and future of GMR: The Nobel Prize 2007
Thompson, Sarah M.
[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (09)
[8] Measurement of the attempt frequency in antiferromagnets
Vallejo-Fernandez, G.
Aley, N. P.
Chapman, J. N.
O'Grady, K.
[J]. APPLIED PHYSICS LETTERS, 2010, 97 (22)
[9] Thermal stability of exchange bias nanostructures
Vallejo-Fernandez, G.
Chapman, J. N.
[J]. JOURNAL OF APPLIED PHYSICS, 2010, 107 (09)
[10] Size effects in submicron exchange bias square elements
Vallejo-Fernandez, G.
Chapmam, J. N.
[J]. APPLIED PHYSICS LETTERS, 2009, 94 (26)

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