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Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Microstructure, transport and galvanomagnetic properties of Ni48Fe12Cr40 thin films
Roman Zavornitsyn1,2, Mikhail Milyaev1,2, Larisa Naumova1,2
1Laboratory of Quantum Nanospintronics, M.N. Mikheev lnstitute of Metal Physics of Ural Branch of Russian Academy of Sciences, S. Kovalevskoi str., 18, Ekaterinburg 620108, Russia.
Abstract:
The microstructure, transport, and galvanometric properties of Ni48Fe12Cr40 thin films of various thickness, obtained by magnetron sputtering, were studied in the temperature range of 93-293 K. The Ni48Fe12Cr40 film with thickness of 5 nm has been found to be X-ray amorphous and exhibits a negative temperature coefficient of resistance. The observation of anisotropic magnetoresistance, as well as anomalous and planar Hall effect, indicates the presence of ferromagnetic ordering in this sample. The increase of the Ni48Fe12Cr40 film thickness to 8 nm leads to the crystallization and texture formation, which promotes more uniform distribution of Cr atoms in Ni-Fe matrix and suppression of the long-range ferromagnetic order.
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