Thermally activated annihilation of an individual domain in submicrometer nickel particles

J. G S Lok; A. K. Geim; U. Wyder; J. C. Maan; S. V. Dubonos

doi:10.1016/S0304-8853(99)00438-2

Thermally activated annihilation of an individual domain in submicrometer nickel particles

J. G S Lok, A. K. Geim, U. Wyder, J. C. Maan, S. V. Dubonos

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

Abstract

We have used the technique of ballistic Hall micromagnetometry to study the annihilation process of an individual domain in sub-micron ferromagnetic nickel disks. The technique allows to detect changes in magnetization as low as 5 × 104 μB over a wide range of temperatures (0.3 <T <77 K). At low temperatures (T <6 K) deviations from thermally activated switching occur, while at higher temperatures (6 <T <77 K) the annihilation of a domain can be described by thermal activation over a single energy barrier.

Original language	English
Pages (from-to)	159-164
Number of pages	5
Journal	Journal of Magnetism and Magnetic Materials
Volume	204
Issue number	3
DOIs	https://doi.org/10.1016/S0304-8853(99)00438-2
Publication status	Published - 15 Sept 1999

Keywords

ballistic hall micromagnetry
submicron
annihilation
single magnetic particles
junction
field

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10.1016/S0304-8853(99)00438-2

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title = "Thermally activated annihilation of an individual domain in submicrometer nickel particles",

abstract = "We have used the technique of ballistic Hall micromagnetometry to study the annihilation process of an individual domain in sub-micron ferromagnetic nickel disks. The technique allows to detect changes in magnetization as low as 5 × 104 μB over a wide range of temperatures (0.3 <T <77 K). At low temperatures (T <6 K) deviations from thermally activated switching occur, while at higher temperatures (6 <T <77 K) the annihilation of a domain can be described by thermal activation over a single energy barrier.",

keywords = "ballistic hall micromagnetry, submicron, annihilation, single magnetic particles, junction, field",

author = "Lok, {J. G S} and Geim, {A. K.} and U. Wyder and Maan, {J. C.} and Dubonos, {S. V.}",

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T1 - Thermally activated annihilation of an individual domain in submicrometer nickel particles

AU - Lok, J. G S

AU - Geim, A. K.

AU - Wyder, U.

AU - Maan, J. C.

AU - Dubonos, S. V.

N1 - 229DD Times Cited:11 Cited References Count:16

PY - 1999/9/15

Y1 - 1999/9/15

N2 - We have used the technique of ballistic Hall micromagnetometry to study the annihilation process of an individual domain in sub-micron ferromagnetic nickel disks. The technique allows to detect changes in magnetization as low as 5 × 104 μB over a wide range of temperatures (0.3 <T <77 K). At low temperatures (T <6 K) deviations from thermally activated switching occur, while at higher temperatures (6 <T <77 K) the annihilation of a domain can be described by thermal activation over a single energy barrier.

AB - We have used the technique of ballistic Hall micromagnetometry to study the annihilation process of an individual domain in sub-micron ferromagnetic nickel disks. The technique allows to detect changes in magnetization as low as 5 × 104 μB over a wide range of temperatures (0.3 <T <77 K). At low temperatures (T <6 K) deviations from thermally activated switching occur, while at higher temperatures (6 <T <77 K) the annihilation of a domain can be described by thermal activation over a single energy barrier.

KW - ballistic hall micromagnetry

KW - submicron

KW - annihilation

KW - single magnetic particles

KW - junction

KW - field

U2 - 10.1016/S0304-8853(99)00438-2

DO - 10.1016/S0304-8853(99)00438-2

M3 - Article

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VL - 204

SP - 159

EP - 164

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 3

ER -

Thermally activated annihilation of an individual domain in submicrometer nickel particles

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Keywords

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