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 |
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論文番号 | 166402 |
ジャーナル | Physical Review Letters |
巻 | 100 |
号 | 16 |
DOI | |
出版ステータス | Published - 2008 4月 25 |
ASJC Scopus subject areas
- 物理学および天文学(全般)