Magnetic Properties of Ion Irradiated Fe75Mo8Cu1B16 Metallic Glass
M. Hasiaka and M. Miglierinib,c
aDepartment of Mechanics and Materials Science, Wrocław University of Science and Technology, M. Smoluchowskiego 25, 50-370 Wrocław, Poland
bDepartment of Nuclear Reactors, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, V Holešovičkách 2, 180 00 Prague, Czech Republic
cSlovak University of Technology in Bratislava, Faculty of Electrical Engineering and Information Technology, Institute of Nuclear and Physical Engineering, Ilkovičova 3, 812 19 Bratislava, Slovakia
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Microstructure and thermomagnetic properties of ion-bombarded amorphous Fe75Mo8Cu1B16 alloy are investigated. The Mössbauer spectroscopy shows that surface regions at the air side of the ribbons irradiated with 2× 1016 ions/cm2 were significantly affected by 130 keV N+ ions. On the other hand, the opposite (wheel) side that was not exposed to ion irradiation is practically intact. The analysis of temperature dependences of magnetization shows the Curie points of 313 K and 316 K for as-quenched and irradiated samples, respectively. The maximum of magnetic entropy change calculated for the irradiated alloy in a magnetic field of 1.0 T occurs at 312.5 K and equals to 0.77 J kg-1 K-1 while that of the as-quenched sample is 0.74 J kg-1 K-1.

DOI: 10.12693/APhysPolA.131.768
PACS numbers: 75.50.Kj, 75.60.Ej, 75.30.Sg, 76.80.+y