Large spin-orbit splitting and weakly anisotropic superconductivity revealed with single-crystalline noncentrosymmetric CaIrSi 3

G. Eguchi, H. Wadati, Takeharu Sugiyama, E. Ikenaga, S. Yonezawa, Y. Maeno

研究成果: ジャーナルへの寄稿記事

9 引用 (Scopus)

抄録

We report normal and superconducting properties of the Rashba-type noncentrosymmetric compound CaIrSi 3 using single crystalline samples with nearly 100% superconducting volume fraction. The electronic density of states revealed by the hard x-ray photoemission spectroscopy can be well explained by the relativistic first-principles band calculation. This indicates that strong spin-orbit interaction indeed affects the electronic states of this compound. The obtained H-T phase diagram exhibits only approximately 10% anisotropy, indicating that the superconducting properties are almost three dimensional. Nevertheless, strongly anisotropic vortex pinning is observed.

元の言語英語
記事番号184510
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
86
発行部数18
DOI
出版物ステータス出版済み - 11 15 2012

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Electronic density of states
Electronic states
Photoelectron spectroscopy
Superconductivity
Phase diagrams
Volume fraction
Orbits
Vortex flow
Anisotropy
superconductivity
Crystalline materials
orbits
X rays
spin-orbit interactions
electronics
photoelectric emission
phase diagrams
vortices
anisotropy
spectroscopy

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

これを引用

Large spin-orbit splitting and weakly anisotropic superconductivity revealed with single-crystalline noncentrosymmetric CaIrSi 3 . / Eguchi, G.; Wadati, H.; Sugiyama, Takeharu; Ikenaga, E.; Yonezawa, S.; Maeno, Y.

:: Physical Review B - Condensed Matter and Materials Physics, 巻 86, 番号 18, 184510, 15.11.2012.

研究成果: ジャーナルへの寄稿記事

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AU - Eguchi, G.

AU - Wadati, H.

AU - Sugiyama, Takeharu

AU - Ikenaga, E.

AU - Yonezawa, S.

AU - Maeno, Y.

PY - 2012/11/15

Y1 - 2012/11/15

N2 - We report normal and superconducting properties of the Rashba-type noncentrosymmetric compound CaIrSi 3 using single crystalline samples with nearly 100% superconducting volume fraction. The electronic density of states revealed by the hard x-ray photoemission spectroscopy can be well explained by the relativistic first-principles band calculation. This indicates that strong spin-orbit interaction indeed affects the electronic states of this compound. The obtained H-T phase diagram exhibits only approximately 10% anisotropy, indicating that the superconducting properties are almost three dimensional. Nevertheless, strongly anisotropic vortex pinning is observed.

AB - We report normal and superconducting properties of the Rashba-type noncentrosymmetric compound CaIrSi 3 using single crystalline samples with nearly 100% superconducting volume fraction. The electronic density of states revealed by the hard x-ray photoemission spectroscopy can be well explained by the relativistic first-principles band calculation. This indicates that strong spin-orbit interaction indeed affects the electronic states of this compound. The obtained H-T phase diagram exhibits only approximately 10% anisotropy, indicating that the superconducting properties are almost three dimensional. Nevertheless, strongly anisotropic vortex pinning is observed.

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