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C-axis Penetration Depth and Inter-layer Conductivity in the Thallium Based Cuprate Superconductors
D. Dulic, D. van der Marel, A. A. Tsvetkov +4
The c-axis Josephson plasmon in optimally doped single-layer and bi-layer high Tc cuprates Tl2201 and Tl2212 have been investigated using infrared spectroscopy. We observed the pla…
Mid-infrared absorption in YBa2Cu3O6: Failure of spin-wave theory in undoped cuprates?
M. Grueninger, D. van der Marel, A. Damascelli +4
The optical conductivity sigma (omega) of undoped YBa2Cu3O6 is studied in detail in the mid-infrared range. Substitutions on all but the Ba site are used to identify the prominent…
Observation of out-of-phase bilayer plasmons in YBa_2Cu_3O_7-delta
M. Grueninger, D. van der Marel, A. A. Tsvetkov +1
The temperature dependence of the c-axis optical conductivity σ(ω) of optimally and overdoped YBa_2Cu_3O_x (x=6.93 and 7) is reported in the far- (FIR) and mid-infrared (MIR) range…