Electronic structure of Eu atomic wires encapsulated inside single-wall carbon nanotubes

Ryo Nakanishi, Ryo Kitaura, Paola Ayala, Hidetsugu Shiozawa, Kathrin de Blauwe, Patrick Hoffmann, Daeheon Choi, Yasumitsu Miyata, Thomas Pichler, and Hisanori Shinohara

Phys. Rev. B 86, 115445 – Published 26 September 2012

Abstract

X-ray absorption (resonant) photoelectron spectroscopy has been employed to investigate electronic structure of Eu atomic wires encapsulated in single-wall carbon nanotubes (SWCNTs). The measurements reveal that there is a substantial electron transfer of $+$ 1.79 $\pm$ 0.11 from a Eu atom to the surrounding SWCNT. The shape of the observed Fermi edge is different from that of a three-dimensional metal, suggesting that electrons in this one-dimensional system form a Tomonaga-Luttinger liquid.

Received 3 May 2012

DOI:https://doi.org/10.1103/PhysRevB.86.115445

Authors & Affiliations

Ryo Nakanishi¹, Ryo Kitaura¹, Paola Ayala², Hidetsugu Shiozawa², Kathrin de Blauwe², Patrick Hoffmann³, Daeheon Choi¹, Yasumitsu Miyata¹, Thomas Pichler², and Hisanori Shinohara¹

¹Department of Chemistry & Institute for Advanced Research, Nagoya University, Nagoya, 464-8602, Japan
²Faculty of Physics, University of Vienna, A-1090 Wien, Austria
³BESSY II, D-12489 Berlin, Germany

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Vol. 86, Iss. 11 — 15 September 2012

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