Domain wall depinning from notches using combined in- and out-of-plane magnetic fields

J.J.W. Goertz; G. Ziemys; I. Eichwald; M. Becherer; H.J.M. Swagten; S. Breitkreutz-v. Gamm

doi:10.1063/1.4944698

Domain wall depinning from notches using combined in- and out-of-plane magnetic fields

J.J.W. Goertz, G. Ziemys, I. Eichwald, M. Becherer, H.J.M. Swagten, S. Breitkreutz-v. Gamm

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

17 Citations (Scopus)

290 Downloads (Pure)

Abstract

Controlled domain wall motion and pinning in nanowires with perpendicular magnetic anisotropy are of great importance in modern magnetic memory and logic devices. Here, we investigate by experiment the DW pinning and depinning from a notch in a magnetic nanowire, under the influence of combined in- and out-of-plane magnetic fields. In our experiment, the perpendicular magnetization of the Co/Pt nanowires is tilted with the help of sub-μs in-plane field pulses generated by an on-chip coil. Consequently, the energy density of the DW is decreased and the depinning field of the notch is reduced. A theoretical model is applied and compared to the measurement results. The DW depinning mechanism and the DW type are further investigated by micromagnetic simulations.

Original language	English
Article number	056407
Pages (from-to)	1-7
Number of pages	7
Journal	AIP Advances
Volume	6
Issue number	5
DOIs	https://doi.org/10.1063/1.4944698
Publication status	Published - 1 May 2016

Access to Document

10.1063/1.4944698

publisher versionFinal published version, 1.81 MB

Cite this

@article{0134f967d5974584960edc494141afc7,

title = "Domain wall depinning from notches using combined in- and out-of-plane magnetic fields",

abstract = "Controlled domain wall motion and pinning in nanowires with perpendicular magnetic anisotropy are of great importance in modern magnetic memory and logic devices. Here, we investigate by experiment the DW pinning and depinning from a notch in a magnetic nanowire, under the influence of combined in- and out-of-plane magnetic fields. In our experiment, the perpendicular magnetization of the Co/Pt nanowires is tilted with the help of sub-μs in-plane field pulses generated by an on-chip coil. Consequently, the energy density of the DW is decreased and the depinning field of the notch is reduced. A theoretical model is applied and compared to the measurement results. The DW depinning mechanism and the DW type are further investigated by micromagnetic simulations.",

author = "J.J.W. Goertz and G. Ziemys and I. Eichwald and M. Becherer and H.J.M. Swagten and {Breitkreutz-v. Gamm}, S.",

year = "2016",

month = may,

day = "1",

doi = "10.1063/1.4944698",

language = "English",

volume = "6",

pages = "1--7",

journal = "AIP Advances",

issn = "2158-3226",

publisher = "American Institute of Physics",

number = "5",

}

TY - JOUR

T1 - Domain wall depinning from notches using combined in- and out-of-plane magnetic fields

AU - Goertz, J.J.W.

AU - Ziemys, G.

AU - Eichwald, I.

AU - Becherer, M.

AU - Swagten, H.J.M.

AU - Breitkreutz-v. Gamm, S.

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Controlled domain wall motion and pinning in nanowires with perpendicular magnetic anisotropy are of great importance in modern magnetic memory and logic devices. Here, we investigate by experiment the DW pinning and depinning from a notch in a magnetic nanowire, under the influence of combined in- and out-of-plane magnetic fields. In our experiment, the perpendicular magnetization of the Co/Pt nanowires is tilted with the help of sub-μs in-plane field pulses generated by an on-chip coil. Consequently, the energy density of the DW is decreased and the depinning field of the notch is reduced. A theoretical model is applied and compared to the measurement results. The DW depinning mechanism and the DW type are further investigated by micromagnetic simulations.

AB - Controlled domain wall motion and pinning in nanowires with perpendicular magnetic anisotropy are of great importance in modern magnetic memory and logic devices. Here, we investigate by experiment the DW pinning and depinning from a notch in a magnetic nanowire, under the influence of combined in- and out-of-plane magnetic fields. In our experiment, the perpendicular magnetization of the Co/Pt nanowires is tilted with the help of sub-μs in-plane field pulses generated by an on-chip coil. Consequently, the energy density of the DW is decreased and the depinning field of the notch is reduced. A theoretical model is applied and compared to the measurement results. The DW depinning mechanism and the DW type are further investigated by micromagnetic simulations.

UR - http://www.scopus.com/inward/record.url?scp=84962515966&partnerID=8YFLogxK

U2 - 10.1063/1.4944698

DO - 10.1063/1.4944698

M3 - Article

AN - SCOPUS:84962515966

SN - 2158-3226

VL - 6

SP - 1

EP - 7

JO - AIP Advances

JF - AIP Advances

IS - 5

M1 - 056407

ER -

Domain wall depinning from notches using combined in- and out-of-plane magnetic fields

Abstract

Access to Document

Other files and links

Fingerprint

Cite this