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The non-centrosymmetric layered compounds IrTe 2 I and RhTe 2 I.

Danrui NiXin GuiBingzheng HanHaozhe WangWeiwei XieNai Phuan OngRobert J Cava
Published in: Dalton transactions (Cambridge, England : 2003) (2022)
The previously unreported layered compounds IrTe 2 I and RhTe 2 I were prepared by a high-pressure synthesis method. Single crystal X-ray and powder X-ray diffraction studies find that the compounds are isostructural, crystallizing in a layered orthorhombic structure in the non-centrosymmetric, non-symmorphic space group Pca 2 1 (#29). Characterization reveals diamagnetic, high resistivity, semiconducting behavior for both compounds, consistent with the +3 chemical valence and d 6 electronic configurations for both iridium and rhodium and the Te-Te dimers seen in the structural study. Electronic band structures are calculated for both compounds, showing good agreement with the experimental results.
Keyphrases
  • high resolution
  • reduced graphene oxide
  • magnetic resonance imaging
  • mass spectrometry