Swift thermal steering of domain walls in ferromagnetic MnBi stripes

Alexander Sukhov; Levan Chotorlishvili; Arthur Ernst; Xabier Zubizarreta; Sergey Ostanin; Ingrid Mertig; Eberhard K.U. Gross; Jamal Berakdar

doi:10.1038/srep24411

Swift thermal steering of domain walls in ferromagnetic MnBi stripes

Alexander Sukhov
, Levan Chotorlishvili
, Arthur Ernst
, Xabier Zubizarreta
, Sergey Ostanin
, Ingrid Mertig
, Eberhard K.U. Gross
, Jamal Berakdar^*

^*Corresponding author for this work

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

11 Scopus citations

Abstract

We predict a fast domain wall (DW) motion induced by a thermal gradient across a nanoscopic ferromagnetic stripe of MnBi. The driving mechanism is an exchange torque fueled by magnon accumulation at the DWs. Depending on the thickness of the sample, both hot-to-cold and cold-to-hot DW motion directions are possible. The finding unveils an energy efficient way to manipulate DWs as an essential element in magnetic information processing such as racetrack memory.

Original language	English
Article number	24411
Journal	Scientific Reports
Volume	6
DOIs	https://doi.org/10.1038/srep24411
State	Published - 14 Apr 2016
Externally published	Yes

Bibliographical note

Funding Information:
This work is supported by the Deutsche Forschungsgemeinschaft under grants BE 2161/5-1, ER 340/5-2, ME 1153/15-2 and by the Joint Initiative for Research and Innovation within the Fraunhofer and Max Planck cooperation program.

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title = "Swift thermal steering of domain walls in ferromagnetic MnBi stripes",

abstract = "We predict a fast domain wall (DW) motion induced by a thermal gradient across a nanoscopic ferromagnetic stripe of MnBi. The driving mechanism is an exchange torque fueled by magnon accumulation at the DWs. Depending on the thickness of the sample, both hot-to-cold and cold-to-hot DW motion directions are possible. The finding unveils an energy efficient way to manipulate DWs as an essential element in magnetic information processing such as racetrack memory.",

author = "Alexander Sukhov and Levan Chotorlishvili and Arthur Ernst and Xabier Zubizarreta and Sergey Ostanin and Ingrid Mertig and Gross, \{Eberhard K.U.\} and Jamal Berakdar",

note = "Funding Information: This work is supported by the Deutsche Forschungsgemeinschaft under grants BE 2161/5-1, ER 340/5-2, ME 1153/15-2 and by the Joint Initiative for Research and Innovation within the Fraunhofer and Max Planck cooperation program.",

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AU - Sukhov, Alexander

AU - Chotorlishvili, Levan

AU - Ernst, Arthur

AU - Zubizarreta, Xabier

AU - Ostanin, Sergey

AU - Mertig, Ingrid

AU - Gross, Eberhard K.U.

AU - Berakdar, Jamal

N1 - Funding Information: This work is supported by the Deutsche Forschungsgemeinschaft under grants BE 2161/5-1, ER 340/5-2, ME 1153/15-2 and by the Joint Initiative for Research and Innovation within the Fraunhofer and Max Planck cooperation program.

PY - 2016/4/14

Y1 - 2016/4/14

N2 - We predict a fast domain wall (DW) motion induced by a thermal gradient across a nanoscopic ferromagnetic stripe of MnBi. The driving mechanism is an exchange torque fueled by magnon accumulation at the DWs. Depending on the thickness of the sample, both hot-to-cold and cold-to-hot DW motion directions are possible. The finding unveils an energy efficient way to manipulate DWs as an essential element in magnetic information processing such as racetrack memory.

AB - We predict a fast domain wall (DW) motion induced by a thermal gradient across a nanoscopic ferromagnetic stripe of MnBi. The driving mechanism is an exchange torque fueled by magnon accumulation at the DWs. Depending on the thickness of the sample, both hot-to-cold and cold-to-hot DW motion directions are possible. The finding unveils an energy efficient way to manipulate DWs as an essential element in magnetic information processing such as racetrack memory.

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Swift thermal steering of domain walls in ferromagnetic MnBi stripes

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