Current-driven and field-driven domain walls at nonzero temperature

M.E. Lucassen; H.J. van Driel; C. de Morais Smith; R.A. Duine

Current-driven and field-driven domain walls at nonzero temperature

M.E. Lucassen, H.J. van Driel, C. de Morais Smith, R.A. Duine

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

Abstract

We present a model for the dynamics of current-driven and field-driven domain-wall lines at nonzero temperature. We compute thermally averaged drift velocities from the Fokker-Planck equation that describes the nonzero-temperature dynamics of the domain wall. As special limits of this general description, we describe rigid domain walls as well as vortex domain walls. In these limits, we also determine depinning times of the domain wall from an extrinsic pinning potential. We compare our theory with previous theoretical and experimental works.

Original language	Undefined/Unknown
Pages (from-to)	224411/1-224411/11
Number of pages	11
Journal	Physical review. B, Condensed matter and materials physics
Volume	79
Issue number	22
Publication status	Published - 2009

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Cite this

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title = "Current-driven and field-driven domain walls at nonzero temperature",

abstract = "We present a model for the dynamics of current-driven and field-driven domain-wall lines at nonzero temperature. We compute thermally averaged drift velocities from the Fokker-Planck equation that describes the nonzero-temperature dynamics of the domain wall. As special limits of this general description, we describe rigid domain walls as well as vortex domain walls. In these limits, we also determine depinning times of the domain wall from an extrinsic pinning potential. We compare our theory with previous theoretical and experimental works.",

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publisher = "American Physical Society",

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AU - Lucassen, M.E.

AU - van Driel, H.J.

AU - de Morais Smith, C.

AU - Duine, R.A.

PY - 2009

Y1 - 2009

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AB - We present a model for the dynamics of current-driven and field-driven domain-wall lines at nonzero temperature. We compute thermally averaged drift velocities from the Fokker-Planck equation that describes the nonzero-temperature dynamics of the domain wall. As special limits of this general description, we describe rigid domain walls as well as vortex domain walls. In these limits, we also determine depinning times of the domain wall from an extrinsic pinning potential. We compare our theory with previous theoretical and experimental works.

M3 - Article

SN - 1098-0121

VL - 79

SP - 224411/1-224411/11

JO - Physical review. B, Condensed matter and materials physics

JF - Physical review. B, Condensed matter and materials physics

IS - 22

ER -