Solid-state synthesis in Ni/Fe/MgO(001) epitaxial thin films |
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| Authors: | V. G. Myagkov O. A. Bayukov L. E. Bykova V. S. Zhigalov G. N. Bondarenko |
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| Affiliation: | (1) Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia;(2) Institute of Chemistry and Chemical Technology, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russia |
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| Abstract: | Solid-state synthesis in Ni/Fe/MgO(001) bilayer epitaxial thin films has been studied experimentally. The phase sequence Fe/Ni→(～350°C)Ni3Fe→(～400°C)NiFe→(～ 550°C)γpar is formed as the annealing temperature increases. The crystal structure in the invar region consists of epitaxially intergrown single-crystal blocks consisting of the paramagnetic γpar and ferromagnetic NiFe phases, which satisfy the orientation relationship [100](001)NiFe ∥ [100](001) γpar. It has been shown that the nucleation temperatures of the Ni3Fe, NiFe, and γpar phases coincide with the temperatures of solid-state transformations in the Ni-Fe system. |
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