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The influence of th...
The influence of the distribution of interstitial hydrogen on optical transmission of vanadium hydride
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- Komander, Kristina (författare)
- Uppsala universitet,Tillämpad kärnfysik
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Tsakiris, Theofanis (författare)
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- Droulias, Sotirios A. (författare)
- Uppsala universitet,Materialfysik
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visa fler...
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- Pálsson, Gunnar K. (författare)
- Uppsala universitet,Materialfysik
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- Wolff, Max (författare)
- Uppsala universitet,Materialfysik
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- Primetzhofer, Daniel (författare)
- Uppsala universitet,Tillämpad kärnfysik,Tandemlaboratoriet
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visa färre...
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(creator_code:org_t)
- Engelska.
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- Hydrogen-induced changes of optical absorption in Fe/V (001) and Cr/V (001) superlattices are found to be dominated by the distribution of microscopic lattice expansions in vanadium. We relate optical transmission spectra between 400-1000nm to hydrogen distribution and site location in vanadium determined with 15N-NRA and compare to first-principles calculations of a uniaxial lattice expansion. An energy shift of a broad absorption peak induces non-trivial changes in the absorbance as a function of wavelength and hydrogen-induced strain. Differently sized hydrogen-depleted layers in otherwise structurally similar vanadium films containing equal hydrogen inventory [H/V], introduce a different optical response due to differing distribution of the induced microscopic volume change.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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