Temperature-dependent localized excitations of doped carriers in superconducting diamond

K. Ishizaka*, R. Eguchi, S. Tsuda, A. Chainani, T. Yokoya, T. Kiss, T. Shimojima, T. Togashi, S. Watanabe, C. T. Chen, Y. Takano, M. Nagao, I. Sakaguchi, T. Takenouchi, H. Kawarada, S. Shin

*この研究の対応する著者

研究成果: Article査読

21 被引用数 (Scopus)

抄録

Laser-excited photoemission spectroscopy is used to show that the doped carriers in metallic or superconducting diamond couple strongly to the lattice via high-energy (∼150meV) optical phonons, with direct observations of localized Franck-Condon multiphonon sidebands appearing as Fermi-edge replicas. It exhibits a temperature-dependent spectral weight transfer from higher to lower energy sidebands and zero-phonon Fermi-edge states. The quantified coupling strength shows a systematic increase on lowering temperature, implicating its relation to the normal state transport and superconductivity.

本文言語English
論文番号166402
ジャーナルPhysical Review Letters
100
16
DOI
出版ステータスPublished - 2008 4 25

ASJC Scopus subject areas

  • 物理学および天文学(全般)

フィンガープリント

「Temperature-dependent localized excitations of doped carriers in superconducting diamond」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル