Fast Domain Wall Motion Governed by Topology and OErsted Fields in Cylindrical Magnetic Nanowires

被引：49

作者：

Schoebitz, M. ^{[1
,2
,3
]}

De Riz, A. ^{[1
]}

Martin, S. ^{[1
,3
]}

Bochmann, S. ^{[2
]}

Thirion, C. ^{[3
]}

Vogel, J. ^{[3
]}

Foerster, M. ^{[4
]}

Aballe, L. ^{[4
]}

Mentes, T. O. ^{[5
]}

Locatelli, A. ^{[5
]}

Genuzio, F. ^{[5
]}

Le-Denmat, S. ^{[3
]}

Cagnon, L. ^{[3
]}

Toussaint, J. C. ^{[3
]}

Gusakova, D. ^{[1
]}

Bachmann, J. ^{[2
,6
]}

Fruchart, O. ^{[1
]}

机构：

[1] Univ Grenoble Alpes, CNRS, CEA, Spintec, F-38054 Grenoble, France

[2] Friedrich Alexander Univ Erlangen Nurnberg, Inorgan Chem, D-91058 Erlangen, Germany

[3] Univ Grenoble Alpes, CNRS, Inst Neel, F-38042 Grenoble, France

[4] Alba Synchrotron Light Facil, CELLS, Barcelona 08290, Spain

[5] Elettra Sincrotrone Trieste SCpA, I-34149 Trieste, Italy

[6] St Petersburg State Univ, Inst Chem, St Petersburg 198504, Russia

来源：

PHYSICAL REVIEW LETTERS | 2019年 / 123卷 / 21期

关键词：

ELECTRICAL-RESISTIVITY; DRIVEN; TEMPERATURE; NICKEL; DYNAMICS; COBALT; TORQUE;

D O I：

10.1103/PhysRevLett.123.217201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

While the usual approach to tailor the behavior of condensed matter and nanosized systems is the choice of material or finite-size or interfacial effects, topology alone may be the key. In the context of the motion of magnetic domain walls (DWs), known to suffer from dynamic instabilities with low mobilities, we report unprecedented velocities >600 m/s for DWs driven by spin-transfer torques in cylindrical nanowires made of a standard ferromagnetic material. The reason is the robust stabilization of a DW type with a specific topology by the (Ersted field associated with the current. This opens the route to the realization of predicted new physics, such as the strong coupling of DWs with spin waves above >600 m/s.

引用

页数：6

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