Flip of spin helix chirality and ferromagnetic state in Fe1−xCoxGe compounds

S.V. Grigoriev, S.-A. Siegfried, E.V. Altynbayev, N.M. Potapova, V. Dyadkin, E.V. Moskvin, D. Menzel, A. Heinemann, S.N. Axenov, L.N. Fomicheva, A.V. Tsvyashchenko

Результат исследований: Научные публикации в периодических изданияхстатья

22 Цитирования (Scopus)

Выдержка

We have synthesized the solid solutions of Fe1−xCoxGe compounds with x running from 0.0 to 0.9. Small-angle neutron scattering and magnetization measurements have shown that these compounds are ordered into the spin helix structure below the critical temperature Tc. The helix is transformed into the ferromagnet by application of the magnetic field above the critical value Hc2. It is shown that Tc decreases smoothly with concentration x from 280 K for FeGe to 0 for CoGe. The values of the helix wave vector ks and the critical field Hc2 depend strongly on concentration x, firstly, decreasing from pure FeGe to its minimum (∣∣ks|→0, Hc2→0) at xc≈0.6, and, then increasing again at higher x. Thus, we observe a transformation of the helix structure to the ferromagnet at x→xc at zero field. We concluded that this transformation is caused by different signs of the spin helicity for the compounds with x>xc and x
Язык оригиналаанглийский
Страницы (с-по)174414_1-5
ЖурналPhysical Review B - Condensed Matter and Materials Physics
Том90
Номер выпуска17
DOI
СостояниеОпубликовано - 2014

Отпечаток

Chirality
Neutron scattering
chirality
helices
Solid solutions
Magnetization
Magnetic fields
Temperature
critical temperature
neutron scattering
solid solutions
magnetization
magnetic fields

Цитировать

Grigoriev, S.V. ; Siegfried, S.-A. ; Altynbayev, E.V. ; Potapova, N.M. ; Dyadkin, V. ; Moskvin, E.V. ; Menzel, D. ; Heinemann, A. ; Axenov, S.N. ; Fomicheva, L.N. ; Tsvyashchenko, A.V. / Flip of spin helix chirality and ferromagnetic state in Fe1−xCoxGe compounds. В: Physical Review B - Condensed Matter and Materials Physics. 2014 ; Том 90, № 17. стр. 174414_1-5.
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title = "Flip of spin helix chirality and ferromagnetic state in Fe1−xCoxGe compounds",
abstract = "We have synthesized the solid solutions of Fe1−xCoxGe compounds with x running from 0.0 to 0.9. Small-angle neutron scattering and magnetization measurements have shown that these compounds are ordered into the spin helix structure below the critical temperature Tc. The helix is transformed into the ferromagnet by application of the magnetic field above the critical value Hc2. It is shown that Tc decreases smoothly with concentration x from 280 K for FeGe to 0 for CoGe. The values of the helix wave vector ks and the critical field Hc2 depend strongly on concentration x, firstly, decreasing from pure FeGe to its minimum (∣∣ks|→0, Hc2→0) at xc≈0.6, and, then increasing again at higher x. Thus, we observe a transformation of the helix structure to the ferromagnet at x→xc at zero field. We concluded that this transformation is caused by different signs of the spin helicity for the compounds with x>xc and x",
author = "S.V. Grigoriev and S.-A. Siegfried and E.V. Altynbayev and N.M. Potapova and V. Dyadkin and E.V. Moskvin and D. Menzel and A. Heinemann and S.N. Axenov and L.N. Fomicheva and A.V. Tsvyashchenko",
year = "2014",
doi = "10.1103/PhysRevB.90.174414",
language = "English",
volume = "90",
pages = "174414_1--5",
journal = "Physical Review B-Condensed Matter",
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Grigoriev, SV, Siegfried, S-A, Altynbayev, EV, Potapova, NM, Dyadkin, V, Moskvin, EV, Menzel, D, Heinemann, A, Axenov, SN, Fomicheva, LN & Tsvyashchenko, AV 2014, 'Flip of spin helix chirality and ferromagnetic state in Fe1−xCoxGe compounds', Physical Review B - Condensed Matter and Materials Physics, том. 90, № 17, стр. 174414_1-5. https://doi.org/10.1103/PhysRevB.90.174414

Flip of spin helix chirality and ferromagnetic state in Fe1−xCoxGe compounds. / Grigoriev, S.V.; Siegfried, S.-A.; Altynbayev, E.V.; Potapova, N.M.; Dyadkin, V.; Moskvin, E.V.; Menzel, D.; Heinemann, A.; Axenov, S.N.; Fomicheva, L.N.; Tsvyashchenko, A.V.

В: Physical Review B - Condensed Matter and Materials Physics, Том 90, № 17, 2014, стр. 174414_1-5.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Flip of spin helix chirality and ferromagnetic state in Fe1−xCoxGe compounds

AU - Grigoriev, S.V.

AU - Siegfried, S.-A.

AU - Altynbayev, E.V.

AU - Potapova, N.M.

AU - Dyadkin, V.

AU - Moskvin, E.V.

AU - Menzel, D.

AU - Heinemann, A.

AU - Axenov, S.N.

AU - Fomicheva, L.N.

AU - Tsvyashchenko, A.V.

PY - 2014

Y1 - 2014

N2 - We have synthesized the solid solutions of Fe1−xCoxGe compounds with x running from 0.0 to 0.9. Small-angle neutron scattering and magnetization measurements have shown that these compounds are ordered into the spin helix structure below the critical temperature Tc. The helix is transformed into the ferromagnet by application of the magnetic field above the critical value Hc2. It is shown that Tc decreases smoothly with concentration x from 280 K for FeGe to 0 for CoGe. The values of the helix wave vector ks and the critical field Hc2 depend strongly on concentration x, firstly, decreasing from pure FeGe to its minimum (∣∣ks|→0, Hc2→0) at xc≈0.6, and, then increasing again at higher x. Thus, we observe a transformation of the helix structure to the ferromagnet at x→xc at zero field. We concluded that this transformation is caused by different signs of the spin helicity for the compounds with x>xc and x

AB - We have synthesized the solid solutions of Fe1−xCoxGe compounds with x running from 0.0 to 0.9. Small-angle neutron scattering and magnetization measurements have shown that these compounds are ordered into the spin helix structure below the critical temperature Tc. The helix is transformed into the ferromagnet by application of the magnetic field above the critical value Hc2. It is shown that Tc decreases smoothly with concentration x from 280 K for FeGe to 0 for CoGe. The values of the helix wave vector ks and the critical field Hc2 depend strongly on concentration x, firstly, decreasing from pure FeGe to its minimum (∣∣ks|→0, Hc2→0) at xc≈0.6, and, then increasing again at higher x. Thus, we observe a transformation of the helix structure to the ferromagnet at x→xc at zero field. We concluded that this transformation is caused by different signs of the spin helicity for the compounds with x>xc and x

U2 - 10.1103/PhysRevB.90.174414

DO - 10.1103/PhysRevB.90.174414

M3 - Article

VL - 90

SP - 174414_1-5

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 17

ER -