TY - JOUR
T1 - Theory of the Dzyaloshinskii domain-wall tilt in ferromagnetic nanostrips
AU - Muratov, Cyrill B.
AU - Slastikov, Valeriy V.
AU - Kolesnikov, Alexander G.
AU - Tretiakov, Oleg A.
N1 - Funding Information:
We thank O. Tchernyshyov for helpful discussions. C. B. M. was supported, in part, by NSF via Grant No. DMS-1614948. V.V.S. would like to acknowledge support from EPSRC Grant No. EP/K02390X/1, Leverhulme Grant No. RPG-2014-226, Severo Ochoa Program SEV-2013-0323 and Basque Government BERC Program 2014-2017. A.G.K. was supported by the Russian Foundation for Basic Research (RFBR) (Grant No. 17-52-50060). O.A.T. acknowledges support by the Grants-in-Aid for Scientific Research (Grants No. 25247056, No. 15H01009, No. 17K05511, and No. 17H05173) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan and by MaHoJeRo grant (DAAD Spintronics network, Project No. 57334897). O.A.T. and A.G.K. were supported by JSPS and RFBR under the Japan - Russian Research Cooperative Program.
Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/10/16
Y1 - 2017/10/16
N2 - We present an analytical theory of domain-wall tilt due to a transverse in-plane magnetic field in a ferromagnetic nanostrip with out-of-plane anisotropy and Dzyaloshinskii-Moriya interaction (DMI). The theory treats the domain walls as one-dimensional objects with orientation-dependent energy, which interact with the sample edges. We show that under an applied field the domain wall remains straight, but tilts at an angle to the direction of the magnetic field that is proportional to the field strength for moderate fields and sufficiently strong DMI. Furthermore, we obtain a nonlinear dependence of the tilt angle on the applied field at weaker DMI. Our analytical results are corroborated by micromagnetic simulations.
AB - We present an analytical theory of domain-wall tilt due to a transverse in-plane magnetic field in a ferromagnetic nanostrip with out-of-plane anisotropy and Dzyaloshinskii-Moriya interaction (DMI). The theory treats the domain walls as one-dimensional objects with orientation-dependent energy, which interact with the sample edges. We show that under an applied field the domain wall remains straight, but tilts at an angle to the direction of the magnetic field that is proportional to the field strength for moderate fields and sufficiently strong DMI. Furthermore, we obtain a nonlinear dependence of the tilt angle on the applied field at weaker DMI. Our analytical results are corroborated by micromagnetic simulations.
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U2 - 10.1103/PhysRevB.96.134417
DO - 10.1103/PhysRevB.96.134417
M3 - Article
AN - SCOPUS:85037135382
SN - 0163-1829
VL - 96
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
IS - 13
M1 - 134417
ER -