c-axis microwave conductivity of YBa2Cu3O7−δ in the superconducting state
H. Kitano, T. Shibauchi, K. Uchinokura, A. Maeda, H. Asaoka, H. Takei
DOI 10.1103/PhysRevB.51.1401 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We measured the surface impedance of YBa2Cu3O7−δ single crystals at 10 GHz in two kinds of magnetic-field configurations (Hω∥c,Hω ⊥c). We investigated the temperature dependence of the c-axis microwave conductivity σ1c in the superconducting state for a fully oxygenated sample (Tc=93 K) and two oxygen-reduced samples (Tc=65 K, 63 K). In the fully oxygenated sample, σ1c(T) shows a broad peak similar to that of σ1ab(T), while in the oxygen-reduced samples σ1c(T) shows quite different dependence on temperature from σ1ab(T). Namely, σ1c(T) in the superconducting state strongly depends on the oxygen content in YBa2Cu3O7−δ. The result suggests that the dynamics of the quasiparticles in the oxygen-reduced YBa2Cu3O7−δ keeps a strong two-dimensional nature in the superconducting state.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 93 | Pressure not reported | unknown |
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 65 | Pressure not reported | unknown |
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 63 | Pressure not reported | unknown |
Similar papers
Superconducting fluctuations in the microwave conductivity of YBa2Cu3O7−δ single crystals
similarity 0.97I. Ukrainczyk & A. Dulčić
Source status unknown — claims are unverified
c-axis stress dependence of normal and superconducting state properties of YBa2Cu3O7
similarity 0.96M. F. Crommie et al.
Source status unknown — claims are unverified
Universal scaling behavior of the c-axis resistivity of high-temperature superconductors
similarity 0.95Y. H. Su et al.
Source status unknown — claims are unverified
Anomalous microwave conductivity due to collective transport in the pseudogap state of cuprate superconductors
similarity 0.95C. Kusko et al.
Source status unknown — claims are unverified
High-field scaling behavior of thermodynamic and transport quantities of YBa2Cu3O7−δ near the superconducting transition
similarity 0.95U. Welp et al.
Source status unknown — claims are unverified
Conductivity peak, relaxation dynamics, and superconducting gap of YBa2Cu3O7 studied by terahertz and femtosecond optical spectroscopies
similarity 0.95A. Frenkel et al.
Source status unknown — claims are unverified