Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method

Gideon P. Müller; Pavel F. Bessarab; Sergei M. Vlasov; Fabian Lux; Nikolai S. Kiselev; Stefan Blügel; Valery M. Uzdin; Hannes Jónsson

doi:10.1103/PhysRevLett.121.197202

Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method

Gideon P. Müller, Pavel F. Bessarab, Sergei M. Vlasov, Fabian Lux, Nikolai S. Kiselev, Stefan Blügel, Valery M. Uzdin, Hannes Jónsson

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

12 Citations (Scopus)

131 Downloads (Pure)

Abstract

Various transitions that a magnetic Skyrmion can undergo are found in calculations using a method for climbing up the energy surface and converging onto first order saddle points. In addition to collapse and escape through a boundary, the method identifies a transition where the Skyrmion divides and forms two Skyrmions. The activation energy for this duplication process can be similar to that of collapse and escape. A tilting of the external magnetic field for a certain time interval is found to induce the duplication process in a dynamical simulation. Such a process could turn out to be an important avenue for the creation of Skyrmions in future magnetic devices.

Original language	English
Article number	197202
Pages (from-to)	1-6
Journal	Physical Review Letters
Volume	121
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.121.197202
Publication status	Published - 6 Nov 2018
MoE publication type	A1 Journal article-refereed

Access to Document

10.1103/PhysRevLett.121.197202

PhysRevLett.121.197202Final published version, 1.49 MB

Link to publication in Scopus

Fingerprint Dive into the research topics of 'Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method'. Together they form a unique fingerprint.

Cite this

Müller, G. P., Bessarab, P. F., Vlasov, S. M., Lux, F., Kiselev, N. S., Blügel, S., Uzdin, V. M., & Jónsson, H. (2018). Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method. Physical Review Letters, 121(19), 1-6. [197202]. https://doi.org/10.1103/PhysRevLett.121.197202

@article{ac16ab76983143a99335ca17b8e8a667,

title = "Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method",

abstract = "Various transitions that a magnetic Skyrmion can undergo are found in calculations using a method for climbing up the energy surface and converging onto first order saddle points. In addition to collapse and escape through a boundary, the method identifies a transition where the Skyrmion divides and forms two Skyrmions. The activation energy for this duplication process can be similar to that of collapse and escape. A tilting of the external magnetic field for a certain time interval is found to induce the duplication process in a dynamical simulation. Such a process could turn out to be an important avenue for the creation of Skyrmions in future magnetic devices.",

author = "M{\"u}ller, {Gideon P.} and Bessarab, {Pavel F.} and Vlasov, {Sergei M.} and Fabian Lux and Kiselev, {Nikolai S.} and Stefan Bl{\"u}gel and Uzdin, {Valery M.} and Hannes J{\'o}nsson",

note = "| openaire: EC/H2020/700385/EU//CLISEL ",

year = "2018",

month = nov,

day = "6",

doi = "10.1103/PhysRevLett.121.197202",

language = "English",

volume = "121",

pages = "1--6",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "19",

}

Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method. / Müller, Gideon P.; Bessarab, Pavel F.; Vlasov, Sergei M.; Lux, Fabian; Kiselev, Nikolai S.; Blügel, Stefan; Uzdin, Valery M.; Jónsson, Hannes.

In: Physical Review Letters, Vol. 121, No. 19, 197202, 06.11.2018, p. 1-6.

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

TY - JOUR

T1 - Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method

AU - Müller, Gideon P.

AU - Bessarab, Pavel F.

AU - Vlasov, Sergei M.

AU - Lux, Fabian

AU - Kiselev, Nikolai S.

AU - Blügel, Stefan

AU - Uzdin, Valery M.

AU - Jónsson, Hannes

N1 - | openaire: EC/H2020/700385/EU//CLISEL

PY - 2018/11/6

Y1 - 2018/11/6

N2 - Various transitions that a magnetic Skyrmion can undergo are found in calculations using a method for climbing up the energy surface and converging onto first order saddle points. In addition to collapse and escape through a boundary, the method identifies a transition where the Skyrmion divides and forms two Skyrmions. The activation energy for this duplication process can be similar to that of collapse and escape. A tilting of the external magnetic field for a certain time interval is found to induce the duplication process in a dynamical simulation. Such a process could turn out to be an important avenue for the creation of Skyrmions in future magnetic devices.

AB - Various transitions that a magnetic Skyrmion can undergo are found in calculations using a method for climbing up the energy surface and converging onto first order saddle points. In addition to collapse and escape through a boundary, the method identifies a transition where the Skyrmion divides and forms two Skyrmions. The activation energy for this duplication process can be similar to that of collapse and escape. A tilting of the external magnetic field for a certain time interval is found to induce the duplication process in a dynamical simulation. Such a process could turn out to be an important avenue for the creation of Skyrmions in future magnetic devices.

UR - http://www.scopus.com/inward/record.url?scp=85056508324&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.121.197202

DO - 10.1103/PhysRevLett.121.197202

M3 - Article

AN - SCOPUS:85056508324

VL - 121

SP - 1

EP - 6

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 19

M1 - 197202

ER -