Resistivity changes in Cr/V(0 0 1) superlattices during hydrogen absorption

A. K. Eriksson*, A. Liebig, S. Ólafsson, B. Hjörvarsson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The hydrogen induced resistivity changes in Cr/VHx(0 0 1) superlattices where investigated in the concentration range 0 < x < 0.7. Initially, the resistivity increases with H content, reaching a maximum at H / V ≈ 0.5 atomic ratio. At concentration above 0.5, the resistivity decreases with increasing H concentration. These results are in stark contrast to the H induced resistivity changes in Fe/V(0 0 1) superlattices, in which the resistivity increases monotonically up to H / V ≈ 1. The results unambiguously prove the importance of the interface scattering, which calls for better theoretical description of the H induces changes in the electronic structure in this type of materials.

Original languageEnglish
Pages (from-to)526-529
Number of pages4
JournalJournal of Alloys and Compounds
Volume446-447
DOIs
Publication statusPublished - 31 Oct 2007

Bibliographical note

Funding Information:
This work was financially supported by the Icelandic research fund, Research fund of Iceland University, Nordic energy research program (NERP) and the Swedish research council (VR). The authors would like to thank Jonas Åström and Gösta Widman at the Tandem Laboratory Lab at Uppsala University.

Other keywords

  • Crystal structure
  • Hydrogen
  • Resistivity

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