Abstract
Variations in secondary ion emission (SIE) from polycrystals of ferromagnetic disordered Ni-Pd compounds irradiated by argon ions with energy of 10 keV are studied experimentally. A considerable reduction in Ni+ and Pd+ ion emission upon transitioning from the ferromagnetic to the paramagnetic state is revealed for the following Ni-Pd compounds with various Curie points T C: NiPd (T C = 190°C), Ni5Pd (T C = 315°C), and NiPd5 (T C = 110°C). The observed reduction in SIE is attributed to variations in the surface binding energy and the density of electron states near the Fermi level.
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Original Russian Text © K.F. Minnebaev, K.A. Tolpin, A.A. Khaidarov, V.E. Yurasova, 2012, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2012, Vol. 76, No. 5, pp. 613–619.
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Minnebaev, K.F., Tolpin, K.A., Khaidarov, A.A. et al. Influence of the magnetic phase transition on secondary ion emission from disordered Ni-Pd compounds of various compositions. Bull. Russ. Acad. Sci. Phys. 76, 546–552 (2012). https://doi.org/10.3103/S1062873812050188
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DOI: https://doi.org/10.3103/S1062873812050188