Increase of temperature due to Joule heating during current-induced magnetization switching of an MgO-based magnetic tunnel junction

D. H. Lee; S. H. Lim

doi:10.1063/1.2943151

Increase of temperature due to Joule heating during current-induced magnetization switching of an MgO-based magnetic tunnel junction

D. H. Lee, S. H. Lim

Department of Materials Science and Engineering

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

42 Citations (Scopus)

Abstract

Three-dimensional numerical calculations based on the finite element method are performed to calculate the increase of temperature caused by Joule heating during the current-induced magnetization switching of an MgO-based magnetic tunnel junction. The increase of temperature is found to be significantly large (the maximum being 145 K) at critical conditions for the current-induced magnetization switching. The temperature increase also differs greatly, depending on the critical condition, requiring a correction in calculating the thermal stability parameter using the Slonczewski equation. After the correction, the thermal stability parameter increases substantially from 67 to 76.

Original language	English
Article number	233502
Journal	Applied Physics Letters
Volume	92
Issue number	23
DOIs	https://doi.org/10.1063/1.2943151
Publication status	Published - 2008

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2943151

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title = "Increase of temperature due to Joule heating during current-induced magnetization switching of an MgO-based magnetic tunnel junction",

abstract = "Three-dimensional numerical calculations based on the finite element method are performed to calculate the increase of temperature caused by Joule heating during the current-induced magnetization switching of an MgO-based magnetic tunnel junction. The increase of temperature is found to be significantly large (the maximum being 145 K) at critical conditions for the current-induced magnetization switching. The temperature increase also differs greatly, depending on the critical condition, requiring a correction in calculating the thermal stability parameter using the Slonczewski equation. After the correction, the thermal stability parameter increases substantially from 67 to 76.",

author = "Lee, {D. H.} and Lim, {S. H.}",

note = "Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF), through the National Research Laboratory program, funded by the Korean Ministry of Science and Technology (Project No. M10600000198-06J0000-19810). Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

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AU - Lee, D. H.

AU - Lim, S. H.

N1 - Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF), through the National Research Laboratory program, funded by the Korean Ministry of Science and Technology (Project No. M10600000198-06J0000-19810). Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2008

Y1 - 2008

N2 - Three-dimensional numerical calculations based on the finite element method are performed to calculate the increase of temperature caused by Joule heating during the current-induced magnetization switching of an MgO-based magnetic tunnel junction. The increase of temperature is found to be significantly large (the maximum being 145 K) at critical conditions for the current-induced magnetization switching. The temperature increase also differs greatly, depending on the critical condition, requiring a correction in calculating the thermal stability parameter using the Slonczewski equation. After the correction, the thermal stability parameter increases substantially from 67 to 76.

AB - Three-dimensional numerical calculations based on the finite element method are performed to calculate the increase of temperature caused by Joule heating during the current-induced magnetization switching of an MgO-based magnetic tunnel junction. The increase of temperature is found to be significantly large (the maximum being 145 K) at critical conditions for the current-induced magnetization switching. The temperature increase also differs greatly, depending on the critical condition, requiring a correction in calculating the thermal stability parameter using the Slonczewski equation. After the correction, the thermal stability parameter increases substantially from 67 to 76.

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Increase of temperature due to Joule heating during current-induced magnetization switching of an MgO-based magnetic tunnel junction

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