Influence of vanadium spin-polarization on the dissolution of hydrogen in vanadium

• Transition-metal (TM)/V superlattices (TM=Cr,Fe,Mo) show certain peculiarities under hydrogen uptake. Here we investigate the influence of an induced magnetization of the V layers on the hydrogen dissolution by means of first-principles calculations. We find that below a certain value for the magnetic moment of the V host the hydrogen solubility is slightly reduced, whereas for larger moments the hydrogen dissolution becomes favored. The actual position of this transition depends on the tetragonal distortion of the V layers.

Ämnesord

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Nyckelord

chromium alloys

dissolving

electron spin polarisation

hydrogen

iron alloys

magnetic moments

magnetic multilayers

magnetisation

metallic superlattices

molybdenum alloys

solid solubility

vanadium alloys

NATURAL SCIENCES

NATURVETENSKAP

Physics

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