Giant Hall effect in Co-SiO2 nanocomposites

J. C. Denardin; A. B. Pakhomov; M. Knobel; H. Liu; X. X. Zhang

doi:10.1088/0953-8984/12/14/315

Giant Hall effect in Co-SiO₂ nanocomposites

J. C. Denardin^*, A. B. Pakhomov, M. Knobel, H. Liu, X. X. Zhang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

Measurements of both the ordinary and extraordinary components of the Hall effect in co-sputtered granular magnetic Co-SiO₂ nanocomposites are presented. The experiments were done in the temperature range 5-300 K, and fields up to 7 T. Both components show a large enhancement when the metal volume fraction is reduced to the metal-insulator transition. However the enhancement of the ordinary Hall effect is much weaker than that of the extraordinary one. We discuss the implications of this observation for understanding of the giant Hall effect.

Original language	English (US)
Pages (from-to)	3397-3399
Number of pages	3
Journal	Journal of Physics Condensed Matter
Volume	12
Issue number	14
DOIs	https://doi.org/10.1088/0953-8984/12/14/315
State	Published - Apr 10 2000
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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abstract = "Measurements of both the ordinary and extraordinary components of the Hall effect in co-sputtered granular magnetic Co-SiO2 nanocomposites are presented. The experiments were done in the temperature range 5-300 K, and fields up to 7 T. Both components show a large enhancement when the metal volume fraction is reduced to the metal-insulator transition. However the enhancement of the ordinary Hall effect is much weaker than that of the extraordinary one. We discuss the implications of this observation for understanding of the giant Hall effect.",

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T1 - Giant Hall effect in Co-SiO2 nanocomposites

AU - Denardin, J. C.

AU - Pakhomov, A. B.

AU - Knobel, M.

AU - Liu, H.

AU - Zhang, X. X.

PY - 2000/4/10

Y1 - 2000/4/10

N2 - Measurements of both the ordinary and extraordinary components of the Hall effect in co-sputtered granular magnetic Co-SiO2 nanocomposites are presented. The experiments were done in the temperature range 5-300 K, and fields up to 7 T. Both components show a large enhancement when the metal volume fraction is reduced to the metal-insulator transition. However the enhancement of the ordinary Hall effect is much weaker than that of the extraordinary one. We discuss the implications of this observation for understanding of the giant Hall effect.

AB - Measurements of both the ordinary and extraordinary components of the Hall effect in co-sputtered granular magnetic Co-SiO2 nanocomposites are presented. The experiments were done in the temperature range 5-300 K, and fields up to 7 T. Both components show a large enhancement when the metal volume fraction is reduced to the metal-insulator transition. However the enhancement of the ordinary Hall effect is much weaker than that of the extraordinary one. We discuss the implications of this observation for understanding of the giant Hall effect.

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U2 - 10.1088/0953-8984/12/14/315

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ER -

Giant Hall effect in Co-SiO₂ nanocomposites

Abstract

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