Magnetic Skyrmion Spectrum Under Voltage Excitation and its Linear Modulation

  title={Magnetic Skyrmion Spectrum Under Voltage Excitation and its Linear Modulation},
  author={Xing Chen and Wang Kang and Daoqian Zhu and Na Lei and Xichao Zhang and Yan Zhou and Youguang Zhang and Weisheng Zhao},
  journal={Physical Review Applied},
Magnetic skyrmions are topological quasiparticles with great potential for applications in future information storage and processing devices because of their nanoscale size, high stability, and large velocity. Recently, the high-frequency properties of skyrmions have been explored for magnon nanodevices. Here we systematically study the dynamics of an isolated skyrmion under voltage excitation through the voltage-controlled magnetic anisotropy effect in a circular thin film. A theoretical model… 

Figures from this paper


Full phase diagram of isolated skyrmions in a ferromagnet
Magnetic skyrmions are topological quasi particles of great interest for data storage applications because of their small size, high stability, and ease of manipulation via electric current.
Minimal Radius of Magnetic Skyrmions: Statics and Dynamics
In a broad range of applied magnetic fields and material parameters isolated magnetic skyrmions condense into skyrmion lattices. While the geometry of isolated skyrmions and their lattice
The Skyrmion Switch: Turning Magnetic Skyrmion Bubbles on and off with an Electric Field.
The origin of the electrical control of skyrmions stability is unveiled and it is shown that both magnetic dipolar interaction and the Dzyaloshinskii-Moriya interaction play an important role in theskyrmion bubble stabilization.
Nucleation, stability and current-induced motion of isolated magnetic skyrmions in nanostructures.
It is demonstrated by numerical investigations that an isolated skyrmion can be a stable configuration in a nanostructure, can be locally nucleated by injection of spin-polarized current, and can be displaced by current-induced spin torques, even in the presence of large defects.
Nanoscale magnetic skyrmions in metallic films and multilayers: a new twist for spintronics
Magnetic skyrmions are chiral quasiparticles that show promise for the transportation and storage of information. On a fundamental level, skyrmions are model systems for topologically protected spin
Skyrmion based microwave detectors and harvesting
Magnetic skyrmions are topologically protected states that are very promising for the design of the next generation of ultra-low-power electronic devices. In this letter, we propose a magnetic tunnel
Voltage-Driven High-Speed Skyrmion Motion in a Skyrmion-Shift Device
Magnetic skyrmions are promising information carriers for building future high-density and high-speed spintronic devices. However, to achieve a current-driven high-speed skyrmion motion, the required
Dynamically stabilized magnetic skyrmions
This work demonstrates the existence of a dynamically stabilized skyrmion, which exists even when dipolar interactions and DMI are absent, and establishes how such dynamic skyrMions can be nucleated, sustained and manipulated in an effectively lossless medium under a nanocontact.
Electric-field-driven switching of individual magnetic skyrmions.
It is demonstrated that local electric fields can be used to switch reversibly between a magnetic skyrmion and the ferromagnetic state, and the direction of the electric field directly determines the final state, establishing the possibility to combine electric-field writing with the recently envisaged skyrMion racetrack-type memories.
Skyrmion-Electronics: An Overview and Outlook
The fundamental and elementary functionality of skyrmions, such as electric write-in, read-out, transmission, and manipulation, are introduced, and potential electronic applications of sk Kyrmions for nonvolatile memory and logic circuits are described with case studies.