Writing and Deleting Single Magnetic Skyrmions

被引：1244

作者：

Romming, Niklas ^{[1
]}

Hanneken, Christian ^{[1
]}

Menzel, Matthias ^{[1
]}

Bickel, Jessica E. ^{[1
]}

Wolter, Boris ^{[1
]}

von Bergmann, Kirsten ^{[1
]}

Kubetzka, Andre ^{[1
]}

Wiesendanger, Roland ^{[1
]}

机构：

[1] Univ Hamburg, Inst Appl Phys, D-20355 Hamburg, Germany

来源：

SCIENCE | 2013年 / 341卷 / 6146期

基金：

欧洲研究理事会;

关键词：

CHIRAL MAGNET; STATES; LATTICE; DRIVEN;

D O I：

10.1126/science.1240573

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：

Topologically nontrivial spin textures have recently been investigated for spintronic applications. Here, we report on an ultrathin magnetic film in which individual skyrmions can be written and deleted in a controlled fashion with local spin-polarized currents from a scanning tunneling microscope. An external magnetic field is used to tune the energy landscape, and the temperature is adjusted to prevent thermally activated switching between topologically distinct states. Switching rate and direction can then be controlled by the parameters used for current injection. The creation and annihilation of individual magnetic skyrmions demonstrates the potential for topological charge in future information-storage concepts.

引用

页码：636 / 639

页数：4

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