XPS valence band studies of nanocrystalline Zr Pd alloy thin films

Skoryna, J.; Pacanowski, S.; Marczyńska, A.; Werwiński, Mirosław; Rogowska, A.; Wachowiak, M.; Majchrzycki, Łukasz; Czajka, Ryszard; Smardz, L.

doi:10.1016/j.surfcoat.2016.03.030

Cited by 17 publications

(11 citation statements)

References 33 publications

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“…A capping layer of 5 nm Pd was used to allow a fast uptake and release of hydrogen at a temperature of less than 370 K and to avoid oxidation of the MLs. As a substrate we have used Si(100) wafers with an oxidised surface to prevent a silicide formation [15][16][17].…”

Section: Methodsmentioning

confidence: 99%

Interlayer Exchange Coupling in Nb/Fe Multilayers

et al. 2018

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The (110) oriented Nb-Fe multilayers (MLs) with constant Fe and variable Nb sublayer thicknesses were prepared at room temperature using UHV magnetron sputtering. The artificial periodicity was revealed by intense satellite peaks in the low-and high-angle X-ray diffraction patterns. Magnetic hysteresis loop measurements at 5 K revealed antiferromagnetic (AF) exchange coupling of the Fe sublayers for Nb spacer thickness of about 3 monolayers. The corresponding AF coupling energy is equal to about -1.36 mJ/m 2 . The Nb spacer thickness corresponding to the position of the AF peak is in good agreement with ab-initio calculations within localized spin density approximations of exchange-correlation potential.

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Section: Methodsmentioning

confidence: 99%

Interlayer Exchange Coupling in Nb/Fe Multilayers

et al. 2018

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“…As a substrate we have used Si(100) wafer with an oxidised surface to prevent a silicide formation [15][16][17]. The Fe-layer was deposited using a DC source.…”

Section: Methodsmentioning

confidence: 99%

Exchange Coupling Effects in Naturally Oxidised Ultrathin Iron Film

et al. 2018

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Oxidation process of Fe films under atmospheric conditions is depth limited such that an oxide covering layer with a well-defined thickness is formed by which the underlying metal is prevented from further oxidation. Iron thin film with an initial thickness di 4 nm was deposited onto 1.6 nm -V(110) buffer layer using UHV magnetron sputtering. The planar growth of Fe oxides was revealed by atomic force microscopy. X-ray photoelectron spectroscopy studies performed after 250 days of oxidation revealed formation of a hematite (α-Fe2O3q ultrathin film on the metallic rest of iron. Furthermore, low temperature magnetic measurements of the oxidised Fe ultrathin film revealed an exchange anisotropy which is imposed to the metallic rest. As a result, we have observed at low temperatures a shift and broadening of the hysteresis loops due to the exchange interaction at the metal-oxide interface.

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“…The number of repetition was equal to 10. Finally, a protective layer of 10 nm Pd was deposited to allow a fast uptake and release of hydrogen at RT and to avoid oxidation of the top Ni sublayer [14,15].…”

Section: Methodsmentioning

confidence: 99%

Magnetisation and Hydrogenation of Mg/Ni Multilayers

et al. 2018

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In this contribution we have studied magnetisation of Mg/Ni multilayers (MLs) to characterise the alloing effect near interfaces. The layered structure was characterised by standard X-ray diffraction. The MLs were deposited by UHV magnetron sputtering onto naturally oxidised Si(100) substrates. Results showed, that due to Mg-Ni alloy formation near interfaces the magnetizations of the MLs were strongly reduced. Effective "dead" Ni layer thickness was estimated as 1.2 nm at room temperature (RT). Furthermore, hydrogen absorption kinetics at a pressure of about 1000 mbar was studied at RT in Pd covered Mg/Ni MLs using four-point resistivity measurements. Results showed that the fastest initial rise in resistance in the first 9 s was observed for dNi 3.5 nm.

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XPS valence band studies of nanocrystalline Zr Pd alloy thin films

Cited by 17 publications

References 33 publications

Interlayer Exchange Coupling in Nb/Fe Multilayers

Interlayer Exchange Coupling in Nb/Fe Multilayers

Exchange Coupling Effects in Naturally Oxidised Ultrathin Iron Film

Magnetisation and Hydrogenation of Mg/Ni Multilayers

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