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Spin-wave dynamics in the helimagnet FeGe studied by small-angle neutron scattering. / Siegfried, S. A.; Sukhanov, A. S.; Altynbaev, E. V.; Honecker, D.; Heinemann, A.; Tsvyashchenko, A. V.; Grigoriev, S. V.

In: Physical Review B, Vol. 95, No. 13, 134415, 12.04.2017.

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

Harvard

Siegfried, SA, Sukhanov, AS, Altynbaev, EV, Honecker, D, Heinemann, A, Tsvyashchenko, AV & Grigoriev, SV 2017, 'Spin-wave dynamics in the helimagnet FeGe studied by small-angle neutron scattering', Physical Review B, vol. 95, no. 13, 134415. https://doi.org/10.1103/PhysRevB.95.134415

APA

Siegfried, S. A., Sukhanov, A. S., Altynbaev, E. V., Honecker, D., Heinemann, A., Tsvyashchenko, A. V., & Grigoriev, S. V. (2017). Spin-wave dynamics in the helimagnet FeGe studied by small-angle neutron scattering. Physical Review B, 95(13), [134415]. https://doi.org/10.1103/PhysRevB.95.134415

Vancouver

Siegfried SA, Sukhanov AS, Altynbaev EV, Honecker D, Heinemann A, Tsvyashchenko AV et al. Spin-wave dynamics in the helimagnet FeGe studied by small-angle neutron scattering. Physical Review B. 2017 Apr 12;95(13). 134415. https://doi.org/10.1103/PhysRevB.95.134415

Author

Siegfried, S. A. ; Sukhanov, A. S. ; Altynbaev, E. V. ; Honecker, D. ; Heinemann, A. ; Tsvyashchenko, A. V. ; Grigoriev, S. V. / Spin-wave dynamics in the helimagnet FeGe studied by small-angle neutron scattering. In: Physical Review B. 2017 ; Vol. 95, No. 13.

BibTeX

@article{2149fb03d878495cb44bf6fe3625691e,
title = "Spin-wave dynamics in the helimagnet FeGe studied by small-angle neutron scattering",
abstract = "We have studied the spin-wave stiffness of the Dzyaloshinskii-Moriya helimagnet FeGe in a temperature range from 225 K up to TC≈278.7K by small-angle neutron scattering. The method we have used is based on [Grigoriev, Phys. Rev. B 92, 220415(R) (2015)PRBMDO1098-012110.1103/PhysRevB.92.220415] and was extended here for the application in polycrystalline samples. We confirm the validity of the anisotropic spin-wave dispersion for FeGe caused by the Dzyaloshinskii-Moriya interaction. We have shown that the spin-wave stiffness A for the FeGe helimagnet decreases with a temperature as A(T)=194[1-0.7(T/TC)4.2]meV{\AA}2. The finite value of the spin-wave stiffness A=58meV{\AA}2 at TC classifies the order-disorder phase transition in FeGe as being the first-order one.",
author = "Siegfried, {S. A.} and Sukhanov, {A. S.} and Altynbaev, {E. V.} and D. Honecker and A. Heinemann and Tsvyashchenko, {A. V.} and Grigoriev, {S. V.}",
note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",
year = "2017",
month = apr,
day = "12",
doi = "10.1103/PhysRevB.95.134415",
language = "English",
volume = "95",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "13",

}

RIS

TY - JOUR

T1 - Spin-wave dynamics in the helimagnet FeGe studied by small-angle neutron scattering

AU - Siegfried, S. A.

AU - Sukhanov, A. S.

AU - Altynbaev, E. V.

AU - Honecker, D.

AU - Heinemann, A.

AU - Tsvyashchenko, A. V.

AU - Grigoriev, S. V.

N1 - Publisher Copyright: © 2017 American Physical Society.

PY - 2017/4/12

Y1 - 2017/4/12

N2 - We have studied the spin-wave stiffness of the Dzyaloshinskii-Moriya helimagnet FeGe in a temperature range from 225 K up to TC≈278.7K by small-angle neutron scattering. The method we have used is based on [Grigoriev, Phys. Rev. B 92, 220415(R) (2015)PRBMDO1098-012110.1103/PhysRevB.92.220415] and was extended here for the application in polycrystalline samples. We confirm the validity of the anisotropic spin-wave dispersion for FeGe caused by the Dzyaloshinskii-Moriya interaction. We have shown that the spin-wave stiffness A for the FeGe helimagnet decreases with a temperature as A(T)=194[1-0.7(T/TC)4.2]meVÅ2. The finite value of the spin-wave stiffness A=58meVÅ2 at TC classifies the order-disorder phase transition in FeGe as being the first-order one.

AB - We have studied the spin-wave stiffness of the Dzyaloshinskii-Moriya helimagnet FeGe in a temperature range from 225 K up to TC≈278.7K by small-angle neutron scattering. The method we have used is based on [Grigoriev, Phys. Rev. B 92, 220415(R) (2015)PRBMDO1098-012110.1103/PhysRevB.92.220415] and was extended here for the application in polycrystalline samples. We confirm the validity of the anisotropic spin-wave dispersion for FeGe caused by the Dzyaloshinskii-Moriya interaction. We have shown that the spin-wave stiffness A for the FeGe helimagnet decreases with a temperature as A(T)=194[1-0.7(T/TC)4.2]meVÅ2. The finite value of the spin-wave stiffness A=58meVÅ2 at TC classifies the order-disorder phase transition in FeGe as being the first-order one.

UR - http://www.scopus.com/inward/record.url?scp=85017521880&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.95.134415

DO - 10.1103/PhysRevB.95.134415

M3 - Article

AN - SCOPUS:85017521880

VL - 95

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 13

M1 - 134415

ER -

ID: 86153682