Apr, 2008
Temperature-dependent localized excitations of doped carriers in superconducting diamond
PHYSICAL REVIEW LETTERS
- Volume
- 100
- Number
- 16
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1103/PhysRevLett.100.166402
- Publisher
- AMER PHYSICAL SOC
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 (similar to 150 meV) 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.
- Link information
- ID information
-
- DOI : 10.1103/PhysRevLett.100.166402
- ISSN : 0031-9007
- eISSN : 1079-7114
- Web of Science ID : WOS:000255457600061