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Titolo:
Temperature dependence of the AMR curve in NiO/NiFe bilayers
Autore:
Kim, CG; Park, BS; Kim, DY; Song, JS; Min, BK;
Indirizzi:
Sun Moon Univ, Dept Phys, Chungnam 336840, South Korea Sun Moon Univ Chungnam South Korea 336840 , Chungnam 336840, South Korea Hyundai Elect Ind Co Ltd, Telecommun Syst Lab 2, Kyonggi 476860, South Korea Hyundai Elect Ind Co Ltd Kyonggi South Korea 476860 476860, South Korea KERI, Div Elect Mater, Changwon 641120, South Korea KERI Changwon South Korea 641120 ect Mater, Changwon 641120, South Korea
Titolo Testata:
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
, volume: 215, anno: 2000,
pagine: 582 - 584
SICI:
0304-8853(200006)215:<582:TDOTAC>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANISOTROPIC MAGNETORESISTANCE; FILMS;
Keywords:
Anisotropic Magnetoresistance; temperature; crystalline anisotropy field; single domain;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
7
Recensione:
Indirizzi per estratti:
Indirizzo: Kim, CG Sun Moon Univ, Dept Phys, Chungnam 336840, South Korea Sun Moon Univ Chungnam South Korea 336840 am 336840, South Korea
Citazione:
C.G. Kim et al., "Temperature dependence of the AMR curve in NiO/NiFe bilayers", J MAGN MAGN, 215, 2000, pp. 582-584

Abstract

The temperature dependence of the anisotropic magnetoresistance (AMR) curves was measured as a function of the angle between the applied field H and the exchange coupling field H-ex in NiO(30 nm)/NiFe(t) (t = 5, 10 and 30 nm) bilayers, and the data were compared with calculated results using the single-domain model with the crystalline anisotropy field as fitting parameter. The AMR curves for H less than or equal to H-ex are asymmetrical with respect to 0 = 0 degrees in the t = 10 nm sample, and the angles for maximum resistance, theta(m), are located at the negative field region for the measurement temperature T = 300 K. As temperature decreases, the AMR curve becomes nearly symmetric at T = 100 K, and then again asymmetric with positive theta(m). ii comparison of these results with the calculated AMR has suggested that the crystalline anisotropy field increases with decreasing temperature, but its angle decreases. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 10/07/20 alle ore 12:00:52