New phases of binary compounds: CsCl-type RuGe and RuSn

Y. Sakai, Masanori Matoba, I. Yamada, K. Funakoshi, T. Kunimoto, Y. Higo, Yoichi Kamihara

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We have discovered new phases of binary compounds of Ru and group-14 elements, CsCl-type cubic (Pm-3m) RuGe and RuSn. These materials are synthesized by heat treatment under high pressure, at more than 9.0 GPa for RuGe and 5.0 GPa for RuSn. Both polycrystalline samples exhibit metallic resistivity of 40-120 μΩ. Pseudo-potential density functional theory calculations clarify that Ru 4d orbitals hybridized with Ge/Sn p orbitals dominantly form a Fermi surface. Calculated dynamic properties of these phases show the stability of the CsCl-type phases and the good agreement with the experimental results.

Original languageEnglish
Article number56003
JournalEPL
Volume107
Issue number5
DOIs
Publication statusPublished - 2014 Sep 1

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orbitals
dynamic characteristics
Fermi surfaces
heat treatment
density functional theory
electrical resistivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Sakai, Y., Matoba, M., Yamada, I., Funakoshi, K., Kunimoto, T., Higo, Y., & Kamihara, Y. (2014). New phases of binary compounds: CsCl-type RuGe and RuSn. EPL, 107(5), [56003]. https://doi.org/10.1209/0295-5075/107/56003

New phases of binary compounds : CsCl-type RuGe and RuSn. / Sakai, Y.; Matoba, Masanori; Yamada, I.; Funakoshi, K.; Kunimoto, T.; Higo, Y.; Kamihara, Yoichi.

In: EPL, Vol. 107, No. 5, 56003, 01.09.2014.

Research output: Contribution to journalArticle

Sakai, Y, Matoba, M, Yamada, I, Funakoshi, K, Kunimoto, T, Higo, Y & Kamihara, Y 2014, 'New phases of binary compounds: CsCl-type RuGe and RuSn', EPL, vol. 107, no. 5, 56003. https://doi.org/10.1209/0295-5075/107/56003
Sakai Y, Matoba M, Yamada I, Funakoshi K, Kunimoto T, Higo Y et al. New phases of binary compounds: CsCl-type RuGe and RuSn. EPL. 2014 Sep 1;107(5). 56003. https://doi.org/10.1209/0295-5075/107/56003
Sakai, Y. ; Matoba, Masanori ; Yamada, I. ; Funakoshi, K. ; Kunimoto, T. ; Higo, Y. ; Kamihara, Yoichi. / New phases of binary compounds : CsCl-type RuGe and RuSn. In: EPL. 2014 ; Vol. 107, No. 5.
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