Open Access
Magnetic and transport properties of as-prepared Mn2 CoGa
M Seredina
1
,
I Gavrikov
1
,
S.V. Taskaev
2, 3, 4
,
A Dyakonov
5
,
A Komissarov
1
,
RATNAMALA CHATTERJEE
6
,
V. Novosad
7
,
Vladimir V. Khovaylo
8, 9
Publication type: Journal Article
Publication date: 2019-01-01
scimago Q2
wos Q2
SJR: 0.521
CiteScore: 5.1
Impact factor: 3.0
ISSN: 03048853, 18734766
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Abstract
Magnetic and transport properties of as-prepared Mn2CoGa polycrystalline Heusler alloy were investigated. Results of magnetic measurements were found to agree well with literature data, i.e., the studied Mn2CoGa is a ferrimagnet with magnetic moment of 2.03 μB/f.u. and a high Curie temperature TC = 728 K. Measurements of transport properties revealed that electrical resistivity ρ of Mn2CoGa is anomalously large (∼250 µΩ·cm at room temperature) and demonstrates a complex temperature dependence. Specifically, in the measured temperature interval from 80 K to 375 K, the electrical resistivity is proportional to T2 up to T ∼ 200 K while at higher temperatures ρ can be fitted by ρ(T) = A + B·exp(−CT) expression. These changes in the scattering mechanisms are accompanied by a change of the magnetoresistance sign from positive at T below ∼200 K to negative at higher temperatures.
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Total citations:
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Citations from 2024:
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(20%)
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Dyakonov A. et al. Magnetic and transport properties of as-prepared Mn2CoGa // Journal of Magnetism and Magnetic Materials. 2019. Vol. 470. pp. 55-58.
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Seredina M., Gavrikov I., Gorshenkov M., Taskaev S., Dyakonov A., Komissarov A., CHATTERJEE R., Novosad V., Khovaylo V. V. Magnetic and transport properties of as-prepared Mn2CoGa // Journal of Magnetism and Magnetic Materials. 2019. Vol. 470. pp. 55-58.
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TY - JOUR
DO - 10.1016/j.jmmm.2017.12.043
UR - https://linkinghub.elsevier.com/retrieve/pii/S0304885317327373
TI - Magnetic and transport properties of as-prepared Mn2CoGa
T2 - Journal of Magnetism and Magnetic Materials
AU - Seredina, M
AU - Gavrikov, I
AU - Gorshenkov, Mikhail
AU - Taskaev, S.V.
AU - Dyakonov, A
AU - Komissarov, A
AU - CHATTERJEE, RATNAMALA
AU - Novosad, V.
AU - Khovaylo, Vladimir V.
PY - 2019
DA - 2019/01/01
PB - Elsevier
SP - 55-58
VL - 470
SN - 0304-8853
SN - 1873-4766
ER -
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BibTex (up to 50 authors)
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@article{2019_Dyakonov,
author = {M Seredina and I Gavrikov and Mikhail Gorshenkov and S.V. Taskaev and A Dyakonov and A Komissarov and RATNAMALA CHATTERJEE and V. Novosad and Vladimir V. Khovaylo},
title = {Magnetic and transport properties of as-prepared Mn2CoGa},
journal = {Journal of Magnetism and Magnetic Materials},
year = {2019},
volume = {470},
publisher = {Elsevier},
month = {jan},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0304885317327373},
pages = {55--58},
doi = {10.1016/j.jmmm.2017.12.043}
}