Swift thermal steering of domain walls in ferromagnetic MnBi stripes

被引：10

作者：

Sukhov, Alexander ^{[1
]}

Chotorlishvili, Levan ^{[1
]}

Ernst, Arthur ^{[2
]}

Zubizarreta, Xabier ^{[2
]}

Ostanin, Sergey ^{[2
]}

Mertig, Ingrid ^{[1
,2
]}

Gross, Eberhard K. U. ^{[2
]}

Berakdar, Jamal ^{[1
]}

机构：

[1] Univ Halle Wittenberg, Inst Phys, D-06099 Halle, Germany

[2] Max Planck Inst Microstruct Phys, D-06120 Halle, Germany

来源：

SCIENTIFIC REPORTS | 2016年 / 6卷

关键词：

DRIVEN;

D O I：

10.1038/srep24411

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页数：6

共 41 条

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