Atomic scale understanding of magnetic properties in Ni50Fe35Co15 | Zendy

L. Herojit Singh | Zendy; R. Govindaraj | Zendy; C. Ravishankar | Zendy; S. Rajagopalan | Zendy; G. Amarendra | Zendy

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Atomic scale understanding of magnetic properties in Ni50Fe35Co15

Author(s) -

L. Herojit Singh,

R. Govindaraj,

C. Ravishankar,

S. Rajagopalan,

G. Amarendra

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4940756

Subject(s) - hyperfine structure , paramagnetism , ferromagnetism , condensed matter physics , magnetization , alloy , materials science , mössbauer spectroscopy , annealing (glass) , nickel , mössbauer effect , debye model , magnetic field , chemistry , atomic physics , crystallography , physics , metallurgy , quantum mechanics

Mössbauer spectroscopic studies have been carried out at different temperatures across ferromagnetic to paramagnetic transition in Ni50Fe35Co15 and the evolution of hyperfine parameters such as centre shift and magnetic hyperfine fields with temperature has been studied. Mössbauer spectrum obtained at 300 K in Ni50Fe35Co15 exhibiting fcc crystal structure is a six line pattern with the mean value of the hyperfine field close to 33 Tesla. Ferromagnetic to paramagnetic transition has been observed to occur in this system around 895 K matching with that of magnetization results. Debye temperature of this nickel rich alloy is deduced to be around 470 K matching with that of Ni. Effect of prolonged annealing at 750 K on the magnetic property is also investigated with respect to the thermal stability of the alloy

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