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Doping-induced temperature evolution of a helicoidal spin structure in the MnGe compound. / Altynbaev, E. V.; Sukhanov, A. S.; Siegfried, S. A.; Dyadkin, V. A.; Moskvin, E. V.; Menzel, D.; Heinemann, A.; Schreyer, A.; Fomicheva, L. N.; Tsvyashenko, A. V.; Grigoriev, S. V.

в: ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ, Том 10, № 4, 01.07.2016, стр. 777-782.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Harvard

Altynbaev, EV, Sukhanov, AS, Siegfried, SA, Dyadkin, VA, Moskvin, EV, Menzel, D, Heinemann, A, Schreyer, A, Fomicheva, LN, Tsvyashenko, AV & Grigoriev, SV 2016, 'Doping-induced temperature evolution of a helicoidal spin structure in the MnGe compound', ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ, Том. 10, № 4, стр. 777-782. https://doi.org/10.1134/S1027451016040224, https://doi.org/10.7868/S0207352816080035

APA

Altynbaev, E. V., Sukhanov, A. S., Siegfried, S. A., Dyadkin, V. A., Moskvin, E. V., Menzel, D., Heinemann, A., Schreyer, A., Fomicheva, L. N., Tsvyashenko, A. V., & Grigoriev, S. V. (2016). Doping-induced temperature evolution of a helicoidal spin structure in the MnGe compound. ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ, 10(4), 777-782. https://doi.org/10.1134/S1027451016040224, https://doi.org/10.7868/S0207352816080035

Vancouver

Altynbaev EV, Sukhanov AS, Siegfried SA, Dyadkin VA, Moskvin EV, Menzel D и пр. Doping-induced temperature evolution of a helicoidal spin structure in the MnGe compound. ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ. 2016 Июль 1;10(4):777-782. https://doi.org/10.1134/S1027451016040224, https://doi.org/10.7868/S0207352816080035

Author

Altynbaev, E. V. ; Sukhanov, A. S. ; Siegfried, S. A. ; Dyadkin, V. A. ; Moskvin, E. V. ; Menzel, D. ; Heinemann, A. ; Schreyer, A. ; Fomicheva, L. N. ; Tsvyashenko, A. V. ; Grigoriev, S. V. / Doping-induced temperature evolution of a helicoidal spin structure in the MnGe compound. в: ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ. 2016 ; Том 10, № 4. стр. 777-782.

BibTeX

@article{dd752ada7d244c8e92cd6cd0d36174cf,
title = "Doping-induced temperature evolution of a helicoidal spin structure in the MnGe compound",
abstract = "The helicoidal magnetic structure of a MnGe compound doped with 25% Fe is studied by means of small-angle neutron scattering in a wide temperature range of 10–300 K. Analysis of the scattering-function profile demonstrates that magnetic structures inherent to both pure MnGe and its doped compounds are unstable. The doping of manganese monogermanide is revealed to lead to higher destabilization of the magnetic system. In passing from MnGe to Mn0.75Fe0.25Ge, the magnetic-ordering temperature TN decreases from 130 to 95 K, respectively. It is demonstrated that, at temperatures close to 0 K, the intensity of the contribution to scattering from stable spin helices decreases and the intensity of scattering by spin helix fluctuations increases with increasing impurity-metal concentration. An increased intensity of anomalous scattering caused by spin excitations existing in the system is observed. Helicoidal fluctuations and spin excitations corresponding to low temperatures indicate the quantum nature of the instability in the doped compound. However, MnGe doping with Fe atoms has no influence on the compound{\textquoteright}s magnetic properties at temperatures of higher than TN. The temperature range of short-range ferromagnetic correlations is independent of concentrations and is restricted by temperatures T ranging from 175 to 300 K.",
keywords = "MnFeGe, Гелимагнетик, Спиновая спираль, Температура магнитного упорядочения, Фазовый переход",
author = "Altynbaev, {E. V.} and Sukhanov, {A. S.} and Siegfried, {S. A.} and Dyadkin, {V. A.} and Moskvin, {E. V.} and D. Menzel and A. Heinemann and A. Schreyer and Fomicheva, {L. N.} and Tsvyashenko, {A. V.} and Grigoriev, {S. V.}",
year = "2016",
month = jul,
day = "1",
doi = "10.1134/S1027451016040224",
language = "English",
volume = "10",
pages = "777--782",
journal = "ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ",
issn = "1027-4510",
publisher = "МАИК {"}Наука/Интерпериодика{"}",
number = "4",

}

RIS

TY - JOUR

T1 - Doping-induced temperature evolution of a helicoidal spin structure in the MnGe compound

AU - Altynbaev, E. V.

AU - Sukhanov, A. S.

AU - Siegfried, S. A.

AU - Dyadkin, V. A.

AU - Moskvin, E. V.

AU - Menzel, D.

AU - Heinemann, A.

AU - Schreyer, A.

AU - Fomicheva, L. N.

AU - Tsvyashenko, A. V.

AU - Grigoriev, S. V.

PY - 2016/7/1

Y1 - 2016/7/1

N2 - The helicoidal magnetic structure of a MnGe compound doped with 25% Fe is studied by means of small-angle neutron scattering in a wide temperature range of 10–300 K. Analysis of the scattering-function profile demonstrates that magnetic structures inherent to both pure MnGe and its doped compounds are unstable. The doping of manganese monogermanide is revealed to lead to higher destabilization of the magnetic system. In passing from MnGe to Mn0.75Fe0.25Ge, the magnetic-ordering temperature TN decreases from 130 to 95 K, respectively. It is demonstrated that, at temperatures close to 0 K, the intensity of the contribution to scattering from stable spin helices decreases and the intensity of scattering by spin helix fluctuations increases with increasing impurity-metal concentration. An increased intensity of anomalous scattering caused by spin excitations existing in the system is observed. Helicoidal fluctuations and spin excitations corresponding to low temperatures indicate the quantum nature of the instability in the doped compound. However, MnGe doping with Fe atoms has no influence on the compound’s magnetic properties at temperatures of higher than TN. The temperature range of short-range ferromagnetic correlations is independent of concentrations and is restricted by temperatures T ranging from 175 to 300 K.

AB - The helicoidal magnetic structure of a MnGe compound doped with 25% Fe is studied by means of small-angle neutron scattering in a wide temperature range of 10–300 K. Analysis of the scattering-function profile demonstrates that magnetic structures inherent to both pure MnGe and its doped compounds are unstable. The doping of manganese monogermanide is revealed to lead to higher destabilization of the magnetic system. In passing from MnGe to Mn0.75Fe0.25Ge, the magnetic-ordering temperature TN decreases from 130 to 95 K, respectively. It is demonstrated that, at temperatures close to 0 K, the intensity of the contribution to scattering from stable spin helices decreases and the intensity of scattering by spin helix fluctuations increases with increasing impurity-metal concentration. An increased intensity of anomalous scattering caused by spin excitations existing in the system is observed. Helicoidal fluctuations and spin excitations corresponding to low temperatures indicate the quantum nature of the instability in the doped compound. However, MnGe doping with Fe atoms has no influence on the compound’s magnetic properties at temperatures of higher than TN. The temperature range of short-range ferromagnetic correlations is independent of concentrations and is restricted by temperatures T ranging from 175 to 300 K.

KW - MnFeGe

KW - Гелимагнетик

KW - Спиновая спираль

KW - Температура магнитного упорядочения

KW - Фазовый переход

UR - http://www.scopus.com/inward/record.url?scp=84983078716&partnerID=8YFLogxK

U2 - 10.1134/S1027451016040224

DO - 10.1134/S1027451016040224

M3 - Article

VL - 10

SP - 777

EP - 782

JO - ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ

JF - ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ

SN - 1027-4510

IS - 4

ER -

ID: 7618546