Giant anomalous Hall effect in Fe-based microwires grown by focused-electron-beam-induced doposition

R.M. Cordoba Castillo, R. Lavrijsen, A. Fernández-Pacheco, M.R. Ibarra, F.J. Schoenaker, T.H. Ellis, B. Barcones Campo, J.T. Kohlhepp, H.J.M. Swagten, B. Koopmans, J.J.L. Mulders, J.M. De Teresa

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Uittreksel

We report the temperature dependence of the resistivity, the anisotropic magnetoresistance and the Hall effect of iron microwires grown by focused-electron-beam-induced deposition. By modifying the growth conditions in a controllable way, we study wires with iron compositions varying from 45% to 70%, which present different electrical conduction mechanisms, with resistivity values differing over three orders of magnitude. The magnetoresistance depends highly on the composition, and it can be understood by a subtle interplay between the anisotropic magnetoresistance and intergrain magnetoresistance due to their complex microstructure, consisting of an iron–carbon–oxygen amorphous matrix. A giant value for the anomalous Hall effect is found, which we explain by a large contribution of the skew scattering mechanism. The present results emphasize the correlation between the exotic microstructure of the microwires, and their magnetotransport properties.
Originele taal-2Engels
Artikelnummer035001
Pagina's (van-tot)035001-1/9
Aantal pagina's9
TijdschriftJournal of Physics D: Applied Physics
Volume45
Nummer van het tijdschrift3
DOI's
StatusGepubliceerd - 2012

Vingerafdruk

Hall effect
Magnetoresistance
Electron beams
electron beams
iron
Iron
Enhanced magnetoresistance
Galvanomagnetic effects
wire
conduction
temperature dependence
electrical resistivity
matrices
Wire
Chemical analysis
Temperature

Citeer dit

Cordoba Castillo, R. M., Lavrijsen, R., Fernández-Pacheco, A., Ibarra, M. R., Schoenaker, F. J., Ellis, T. H., ... De Teresa, J. M. (2012). Giant anomalous Hall effect in Fe-based microwires grown by focused-electron-beam-induced doposition. Journal of Physics D: Applied Physics, 45(3), 035001-1/9. [035001]. https://doi.org/10.1088/0022-3727/45/3/035001
Cordoba Castillo, R.M. ; Lavrijsen, R. ; Fernández-Pacheco, A. ; Ibarra, M.R. ; Schoenaker, F.J. ; Ellis, T.H. ; Barcones Campo, B. ; Kohlhepp, J.T. ; Swagten, H.J.M. ; Koopmans, B. ; Mulders, J.J.L. ; De Teresa, J.M. / Giant anomalous Hall effect in Fe-based microwires grown by focused-electron-beam-induced doposition. In: Journal of Physics D: Applied Physics. 2012 ; Vol. 45, Nr. 3. blz. 035001-1/9.
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title = "Giant anomalous Hall effect in Fe-based microwires grown by focused-electron-beam-induced doposition",
abstract = "We report the temperature dependence of the resistivity, the anisotropic magnetoresistance and the Hall effect of iron microwires grown by focused-electron-beam-induced deposition. By modifying the growth conditions in a controllable way, we study wires with iron compositions varying from 45{\%} to 70{\%}, which present different electrical conduction mechanisms, with resistivity values differing over three orders of magnitude. The magnetoresistance depends highly on the composition, and it can be understood by a subtle interplay between the anisotropic magnetoresistance and intergrain magnetoresistance due to their complex microstructure, consisting of an iron–carbon–oxygen amorphous matrix. A giant value for the anomalous Hall effect is found, which we explain by a large contribution of the skew scattering mechanism. The present results emphasize the correlation between the exotic microstructure of the microwires, and their magnetotransport properties.",
author = "{Cordoba Castillo}, R.M. and R. Lavrijsen and A. Fern{\'a}ndez-Pacheco and M.R. Ibarra and F.J. Schoenaker and T.H. Ellis and {Barcones Campo}, B. and J.T. Kohlhepp and H.J.M. Swagten and B. Koopmans and J.J.L. Mulders and {De Teresa}, J.M.",
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Cordoba Castillo, RM, Lavrijsen, R, Fernández-Pacheco, A, Ibarra, MR, Schoenaker, FJ, Ellis, TH, Barcones Campo, B, Kohlhepp, JT, Swagten, HJM, Koopmans, B, Mulders, JJL & De Teresa, JM 2012, 'Giant anomalous Hall effect in Fe-based microwires grown by focused-electron-beam-induced doposition', Journal of Physics D: Applied Physics, vol. 45, nr. 3, 035001, blz. 035001-1/9. https://doi.org/10.1088/0022-3727/45/3/035001

Giant anomalous Hall effect in Fe-based microwires grown by focused-electron-beam-induced doposition. / Cordoba Castillo, R.M.; Lavrijsen, R.; Fernández-Pacheco, A.; Ibarra, M.R.; Schoenaker, F.J.; Ellis, T.H.; Barcones Campo, B.; Kohlhepp, J.T.; Swagten, H.J.M.; Koopmans, B.; Mulders, J.J.L.; De Teresa, J.M.

In: Journal of Physics D: Applied Physics, Vol. 45, Nr. 3, 035001, 2012, blz. 035001-1/9.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Giant anomalous Hall effect in Fe-based microwires grown by focused-electron-beam-induced doposition

AU - Cordoba Castillo, R.M.

AU - Lavrijsen, R.

AU - Fernández-Pacheco, A.

AU - Ibarra, M.R.

AU - Schoenaker, F.J.

AU - Ellis, T.H.

AU - Barcones Campo, B.

AU - Kohlhepp, J.T.

AU - Swagten, H.J.M.

AU - Koopmans, B.

AU - Mulders, J.J.L.

AU - De Teresa, J.M.

PY - 2012

Y1 - 2012

N2 - We report the temperature dependence of the resistivity, the anisotropic magnetoresistance and the Hall effect of iron microwires grown by focused-electron-beam-induced deposition. By modifying the growth conditions in a controllable way, we study wires with iron compositions varying from 45% to 70%, which present different electrical conduction mechanisms, with resistivity values differing over three orders of magnitude. The magnetoresistance depends highly on the composition, and it can be understood by a subtle interplay between the anisotropic magnetoresistance and intergrain magnetoresistance due to their complex microstructure, consisting of an iron–carbon–oxygen amorphous matrix. A giant value for the anomalous Hall effect is found, which we explain by a large contribution of the skew scattering mechanism. The present results emphasize the correlation between the exotic microstructure of the microwires, and their magnetotransport properties.

AB - We report the temperature dependence of the resistivity, the anisotropic magnetoresistance and the Hall effect of iron microwires grown by focused-electron-beam-induced deposition. By modifying the growth conditions in a controllable way, we study wires with iron compositions varying from 45% to 70%, which present different electrical conduction mechanisms, with resistivity values differing over three orders of magnitude. The magnetoresistance depends highly on the composition, and it can be understood by a subtle interplay between the anisotropic magnetoresistance and intergrain magnetoresistance due to their complex microstructure, consisting of an iron–carbon–oxygen amorphous matrix. A giant value for the anomalous Hall effect is found, which we explain by a large contribution of the skew scattering mechanism. The present results emphasize the correlation between the exotic microstructure of the microwires, and their magnetotransport properties.

U2 - 10.1088/0022-3727/45/3/035001

DO - 10.1088/0022-3727/45/3/035001

M3 - Article

VL - 45

SP - 035001-1/9

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

SN - 0022-3727

IS - 3

M1 - 035001

ER -