TY - JOUR
T1 - Temperature-dependent localized excitations of doped carriers in superconducting diamond
AU - Ishizaka, K.
AU - Eguchi, R.
AU - Tsuda, S.
AU - Chainani, Ashish Atma
AU - Yokoya, T.
AU - Kiss, T.
AU - Shimojima, T.
AU - Togashi, T.
AU - Watanabe, S.
AU - Chen, C. T.
AU - Takano, Y.
AU - Nagao, M.
AU - Sakaguchi, I.
AU - Takenouchi, T.
AU - Kawarada, H.
AU - Shin, S.
PY - 2008/4/25
Y1 - 2008/4/25
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/42549104173
UR - https://www.scopus.com/pages/publications/42549104173#tab=citedBy
U2 - 10.1103/PhysRevLett.100.166402
DO - 10.1103/PhysRevLett.100.166402
M3 - Article
AN - SCOPUS:42549104173
SN - 0031-9007
VL - 100
JO - Physical review letters
JF - Physical review letters
IS - 16
M1 - 166402
ER -