Origin of giant magnetoresistance in conventional AlNiCo5 magnets
Hütten A, Reiss G, Saikaly W, Thomas G (2001)
ACTA MATERIALIA 49(5): 827-835.
Zeitschriftenaufsatz
| Veröffentlicht | Englisch
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Abstract / Bemerkung
Structure-property relationships in AlNiCo5 permanent magnets in the optimum magnetic state have been investigated so as to uncover the origin of giant magnetoresistance (GMR). According to analytical field ion and conventional transmission electron microscopy, AlNiCo5 consists of two coherent B2-ordered phases. One, alpha (1), corresponds to Fe7Co3 and the other, alpha (2), to Al1.1Ni0.9 with some substitution of Al, Ni, Cn and Fe, Co, Cu, respectively. Seventy percent of the GMR-effect can be attributed to superparamagnetic clusters, about 1 nm in size, positioned on the Al-rich alpha (2)-sublattice. The remaining 30% result from 3-6 nm superparamagnetic alpha (1)-clusters in the form of fine bridges interconnecting large alpha (1)-particles normal to, or inclined to their direction of elongation. (C) 2001 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
Stichworte
magnetotransport;
magnetic;
atom probe;
analytical electron microscopy
Erscheinungsjahr
2001
Zeitschriftentitel
ACTA MATERIALIA
Band
49
Ausgabe
5
Seite(n)
827-835
ISSN
1359-6454
Page URI
https://pub.uni-bielefeld.de/record/1617729
Zitieren
Hütten A, Reiss G, Saikaly W, Thomas G. Origin of giant magnetoresistance in conventional AlNiCo5 magnets. ACTA MATERIALIA. 2001;49(5):827-835.
Hütten, A., Reiss, G., Saikaly, W., & Thomas, G. (2001). Origin of giant magnetoresistance in conventional AlNiCo5 magnets. ACTA MATERIALIA, 49(5), 827-835. https://doi.org/10.1016/S1359-6454(00)00392-X
Hütten, Andreas, Reiss, Günter, Saikaly, W, and Thomas, G. 2001. “Origin of giant magnetoresistance in conventional AlNiCo5 magnets”. ACTA MATERIALIA 49 (5): 827-835.
Hütten, A., Reiss, G., Saikaly, W., and Thomas, G. (2001). Origin of giant magnetoresistance in conventional AlNiCo5 magnets. ACTA MATERIALIA 49, 827-835.
Hütten, A., et al., 2001. Origin of giant magnetoresistance in conventional AlNiCo5 magnets. ACTA MATERIALIA, 49(5), p 827-835.
A. Hütten, et al., “Origin of giant magnetoresistance in conventional AlNiCo5 magnets”, ACTA MATERIALIA, vol. 49, 2001, pp. 827-835.
Hütten, A., Reiss, G., Saikaly, W., Thomas, G.: Origin of giant magnetoresistance in conventional AlNiCo5 magnets. ACTA MATERIALIA. 49, 827-835 (2001).
Hütten, Andreas, Reiss, Günter, Saikaly, W, and Thomas, G. “Origin of giant magnetoresistance in conventional AlNiCo5 magnets”. ACTA MATERIALIA 49.5 (2001): 827-835.
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