Peculiar behavior of V on the Curie temperature and anisotropy field of SmFe12-xVx compounds
Peculiar behavior of V on the Curie temperature and anisotropy field of SmFe12-xVx compounds
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V对SmFe12-xVx化合物居里温度和各向异性场的特殊行为
DOI:
10.1016/j.actamat.2022.117928
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发表时间:
2022
期刊:
影响因子:
9.4
通讯作者:
Takahashi Y.K.
中科院分区:
文献类型:
--
作者:
Tozman P.;Fukazawa T.;Ogawa D.;Sepehri-Amin H.;Bolyachkin A.;Miyake T.;Hirosawa S.;Hono K.;Takahashi Y.K.
The effect of V on the phase stability and intrinsic magnetic properties of SmFe12-xVx(0 ≤x≤ 1.9) thin films, and bulk SmFe12-xVx(x= 1.5 and 2) are investigated. It is found that V help to stabilize the ThMn12-type phase by decreasing the lattice parameterscand thec/aratio up to its solid solubility limitx= 1.4. Above this limit, the formation of Sm-rich phase has been observed in the microstructure. Interestingly, Curie temperature (Tc) and anisotropy field (μ0Ha) do not exhibit the same trend with the magnetization (μ0Ms) where increasing V enhances the two quantities while decreasing the magnetization. TheTcincrease from 533 K forx= 0 up to 660 K forx= 1 agrees with first principles calculation and it is related with the strengthening of the effect of Fe-V coupling along with its surrounding Fe-Fe couplings. Preservation of room temperature anisotropy field between 10 and 12 T is confirmed by micromagnetic simulation. In addition, V-substituted compounds demonstrate a higher μ0Hathan SmFe12and Nd2Fe14B in the temperature range of 300–550 K. A comparison of the phase stabilizing elementsM= Ti, Ti0.5V0.5, and V in SmFe11M1reveals that V yields the highest μ0Ms, μ0Ha, and Tc. This study demonstrates that V-substituted compounds with 7 at.% phase stabilizers have more merit than Ti-substituted ones for the development of high-performance magnet with better extrinsic magnetic properties.
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影响因子:
4.6
作者:
Matsumoto, Munehisa;Hawai, Takafumi;Ono, Kanta
通讯作者:
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影响因子:
9.4
作者:
J. Zhang;Xin Tang;H. Sepehri;A. Srinithi;T. Ohkubo;K. Hono
通讯作者:
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影响因子:
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G. Hadjipanayis
影响因子:
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作者:
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通讯作者:
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影响因子:
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作者:
COEHOORN, R
通讯作者:
COEHOORN, R