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Hydrogen distribution in Nb/Ta superlattices
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
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2012 (English)In: Journal of Physics: Condensed Matter, ISSN 0953-8984, E-ISSN 1361-648X, Vol. 24, no 25, 255306- p.Article in journal (Refereed) Published
Abstract [en]

The distribution of hydrogen in Nb/Ta superlattices has been investigated by combined neutron reflectivity and x-ray scattering. We provide evidence to support that strain modulations determined with x-ray diffraction can be interpreted as modulations in hydrogen content. We show that the hydrogen concentration is modulated and favors Nb, in agreement with previous studies. We measure the concentration directly using neutron reflectivity and demonstrate no detectable change in the distribution of hydrogen with temperature, in stark contrast to previous studies.

Place, publisher, year, edition, pages
2012. Vol. 24, no 25, 255306- p.
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Natural Sciences
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URN: urn:nbn:se:uu:diva-177214DOI: 10.1088/0953-8984/24/25/255306ISI: 000304875600009OAI: oai:DiVA.org:uu-177214DiVA: diva2:540947
Available from: 2012-07-12 Created: 2012-07-04 Last updated: 2017-12-07Bibliographically approved

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Wolff, MaxPálsson, Gunnar K.Korelis, Panagiotis T.Hjörvarsson, Björgvin

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