TY - JOUR
T1 - Midgap states of Doping-dependent optical-conductivity studies
AU - Jung, J.
AU - Kim, K.
AU - Noh, T.
AU - Choi, E.
PY - 1998
Y1 - 1998
N2 - We investigated the optical-conductivity spectra, σ(ω), of (Formula presented) ((Formula presented) 0.1, 0.3, 0.5, 0.6, 0.8, 0.9, and 1.0) samples between 5 meV and 30 eV at room temperature. With the hole doping, σ(ω) showed double-peak midgap structures below 3 eV. The lower frequency peak was assigned to an interatomic (Formula presented) transition and the higher frequency one was attributed to an intra-atomic transition between Jahn-Teller (JT) split (Formula presented) levels. This work demonstrated that the local JT effects remained for most samples except (Formula presented).
AB - We investigated the optical-conductivity spectra, σ(ω), of (Formula presented) ((Formula presented) 0.1, 0.3, 0.5, 0.6, 0.8, 0.9, and 1.0) samples between 5 meV and 30 eV at room temperature. With the hole doping, σ(ω) showed double-peak midgap structures below 3 eV. The lower frequency peak was assigned to an interatomic (Formula presented) transition and the higher frequency one was attributed to an intra-atomic transition between Jahn-Teller (JT) split (Formula presented) levels. This work demonstrated that the local JT effects remained for most samples except (Formula presented).
UR - http://www.scopus.com/inward/record.url?scp=0000233455&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.57.R11043
DO - 10.1103/PhysRevB.57.R11043
M3 - Article
AN - SCOPUS:0000233455
SN - 1098-0121
VL - 57
SP - R11043-R11046
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 18
ER -