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Titolo:
Geometric shape dependence of coercivity for patterned magnetic thin films
Autore:
Wu, TH; Wu, JC; Wu, CS; Chen, BM; Shieh, HPD;
Indirizzi:
Natl Yunlin Univ Sci & Technol, Dept Humanities & Sci, Touliu 640, Japan Natl Yunlin Univ Sci & Technol Touliu Japan 640 & Sci, Touliu 640, Japan Natl Changhua Univ Educ, Dept Phys, Changhua 500, Taiwan Natl Changhua Univ Educ Changhua Taiwan 500 t Phys, Changhua 500, Taiwan Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu 300, Taiwan Natl ChiaoTung Univ Hsinchu Taiwan 300 troopt Engn, Hsinchu 300, Taiwan
Titolo Testata:
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
fascicolo: 1-3, volume: 209, anno: 2000,
pagine: 220 - 223
SICI:
0304-8853(200002)209:1-3<220:GSDOCF>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
FORCE; MODEL;
Keywords:
coercivity; E-beam lithography; micro-structure; shaped-dependence; canting;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
8
Recensione:
Indirizzi per estratti:
Indirizzo: Wu, TH Natl Yunlin Univ Sci & Technol, Dept Humanities & Sci, Touliu 640, Japan Natl Yunlin Univ Sci & Technol Touliu Japan 640 Touliu 640, Japan
Citazione:
T.H. Wu et al., "Geometric shape dependence of coercivity for patterned magnetic thin films", J MAGN MAGN, 209(1-3), 2000, pp. 220-223

Abstract

The micro-strips with patterned magnetic domains using electron beam lithography have been made to study the geometric shape dependence of coercivity. The size of the micro-strip is 10 mu m x 30 mu m with 0.5 mu m periods hole arrays pattern. Arrays with different types of geometry, such as square-circle-, and ellipse-shapes have been made. amorphous rear-earth transition-metal (RE-TM) thin films with magnetic perpendicular anisotropy were deposited on the microstrips. The extraordinary Hall effect has been employed to measure the hysteresis loop and the coercivity of the sample. We have found that for the same deposited material, the magnitude of coercivity for various shapes are dissimilar. For example, the coercivity of the ellipse-shaped hole arrays is much larger than the coercivity of the square-shaped hole arrays. In addition, we observed that the coercivity of the patterned sites was larger than the sites without patterns for RE-dominated compounds and the coercivity of the patterned sites was smaller than the sites without patterns for TM-dominated compounds. The magnetic moments canting between RE and TM subnetworks will be used to explain the observed phenomena. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/04/20 alle ore 22:55:59