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Titolo:
MR measurement of sub-micron scale relief structures fabricated in GMR materials
Autore:
Matsuyama, K; Nozaki, Y; Misumi, T;
Indirizzi:
Kyushu Univ, Dept Elect Device Engn, Fukuoka 8128581, Japan Kyushu Univ Fukuoka Japan 8128581 ct Device Engn, Fukuoka 8128581, Japan
Titolo Testata:
IEEE TRANSACTIONS ON MAGNETICS
fascicolo: 4, volume: 37, anno: 2001,
parte:, 1
pagine: 2114 - 2116
SICI:
0018-9464(200107)37:4<2114:MMOSSR>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Keywords:
EB lithography; magnetic domain; magnetization reversal; spin valve;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
3
Recensione:
Indirizzi per estratti:
Indirizzo: Matsuyama, K Kyushu Univ, Dept Elect Device Engn, Fukuoka 8128581, Japan Kyushu Univ Fukuoka Japan 8128581 n, Fukuoka 8128581, Japan
Citazione:
K. Matsuyama et al., "MR measurement of sub-micron scale relief structures fabricated in GMR materials", IEEE MAGNET, 37(4), 2001, pp. 2114-2116

Abstract

Understanding of magnetization process in patterned thin films is important for their applications in downsizing various magnetic devices. This paperdeals with an experimental technique which enables us to characterize magnetization process in the ends of patterned ultra-thin films. In this study,only the top layer of magnetic sandwich structures were patterned into an array of fine magnetic particles using electron beam lithography and Ar ionmilling to form relief structures in the films. The magnetization process of the arrays was inferred from magnetoresistance (MR) measurements of the films. MR behaviors of particle array samples of substrate/FM1/Cu/FM2 (FM1,FM2 = Co, NiFe, CoPt) in different pattern widths of omega = 0.2 and 0.6 mum, lengths L ranging from 0.2 to 280 mum and thicknesses of t = 6 and 18 mn were studied. From longitudinal MR measurements, a distinct decrease in remanent magnetization was found for sub-mum particle arrays, which may be associated with the formation of edge domains in the particles.

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Documento generato il 01/04/20 alle ore 23:29:03