Formation of nonbonding π electronic states of graphite due to Pt-C hybridization

Takahiro Kondo; Yosuke Iwasaki; Yujiro Honma; Yoshiteru Takagi; Susumu Okada; Junji Nakamura

doi:10.1103/PhysRevB.80.233408

Formation of nonbonding π electronic states of graphite due to Pt-C hybridization

Takahiro Kondo, Yosuke Iwasaki, Yujiro Honma, Yoshiteru Takagi, Susumu Okada, Junji Nakamura

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

The electronic states of the graphite surface with platinum clusters have been investigated at the atomic scale by scanning tunneling spectroscopy. The distinct local density of states were observed near the Fermi level for carbon atoms around the Pt clusters, which has been ascribed as nonbonding π electronic states of graphite due to Pt-C hybridization. This is consistent with the experimentally observed weaker phonon energies of graphite near the Pt cluster as well as the results of first-principles density-functional calculations of a graphene sheet with a Pt cluster.

Original language	English
Article number	233408
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	80
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevB.80.233408
Publication status	Published - Dec 28 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.80.233408

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AU - Kondo, Takahiro

AU - Iwasaki, Yosuke

AU - Honma, Yujiro

AU - Takagi, Yoshiteru

AU - Okada, Susumu

AU - Nakamura, Junji

PY - 2009/12/28

Y1 - 2009/12/28

N2 - The electronic states of the graphite surface with platinum clusters have been investigated at the atomic scale by scanning tunneling spectroscopy. The distinct local density of states were observed near the Fermi level for carbon atoms around the Pt clusters, which has been ascribed as nonbonding π electronic states of graphite due to Pt-C hybridization. This is consistent with the experimentally observed weaker phonon energies of graphite near the Pt cluster as well as the results of first-principles density-functional calculations of a graphene sheet with a Pt cluster.

AB - The electronic states of the graphite surface with platinum clusters have been investigated at the atomic scale by scanning tunneling spectroscopy. The distinct local density of states were observed near the Fermi level for carbon atoms around the Pt clusters, which has been ascribed as nonbonding π electronic states of graphite due to Pt-C hybridization. This is consistent with the experimentally observed weaker phonon energies of graphite near the Pt cluster as well as the results of first-principles density-functional calculations of a graphene sheet with a Pt cluster.

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Formation of nonbonding π electronic states of graphite due to Pt-C hybridization

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