Compact High-Tc Superconducting Terahertz emitter operating up to 86 K
Hancong Sun, Raphael Wieland, Zuyu Xu, Zaidong Qi, Yangyang Lv, Ya Huang, Huili Zhang, Xianjing Zhou, Jun Li, Yonglei Wang, Fabian Rudau, Johannes S. Hampp, Dieter Koelle, Shigeyuki Ishida, Hiroshi Eisaki, Yoshiyuki Yoshida, Biaobing Jin, Valery P. Koshelets, Reinhold Kleiner, Huabing Wang, Peiheng Wu
DOI 10.1103/PhysRevApplied.10.024041 · Physical Review Applied
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 report on a Stirling-cooled compact Bi2Sr2CaCu2O8+δ intrinsic Josephson-junction stack with very high critical current density and improved cooling, operating at bath temperatures Tb up to 86 K. The square stand-alone stack is embedded between two sapphire substrates. For bath temperatures between 27.8 and 86 K emission is observed at frequencies from 0.356 to 2.09 THz. The emission power exceeds 1μW at bath temperatures between 60 and 80 K for emission frequencies between 0.5 and 0.88 THz. A record high value of 0.577 THz is obtained for the emission frequency at Tb=80K, which is important for potential applications using liquid nitrogen as a coolant. We also compare our experimental results with numerical simulations based on three-dimensional coupled sine-Gordon equations combined with heat diffusion equations.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91.5 | Pressure not reported | unknown |
Similar papers
Temperature Dependence of the Resistivity Tensor in Superconducting Bi2Sr2.2Ca0.8 Cu2O8 Crystals
similarity 0.95S. Martin et al.
Source status unknown — claims are unverified
Pairing symmetry and localization probed by electronic Raman scattering in disordered high-Tc superconductors
similarity 0.94O. V. Misochko et al.
Source status unknown — claims are unverified
Suppressed superconductivity of the surface conduction layer in Bi2Sr2CaCu2O8+x single crystals probed by c-axis tunneling measurements
similarity 0.94Nam Kim et al.
Source status unknown — claims are unverified
Anomalous behavior of the flux line lattice of vibrating high-Tc superconductors at 30 K in magnetic fields parallel to the CuO2 planes
similarity 0.94Y. Kopelevich et al.
Source status unknown — claims are unverified
Microstructure and properties of the ∼90-K superconductor Bi2Sr3−xCaxCu2O8+δ
similarity 0.94Z. Iqbal et al.
Source status unknown — claims are unverified
Valence-band and core-level photoemission study of single-crystal Bi2CaSr2Cu2 O8 superconductors
similarity 0.94Z. -X. Shen et al.
Source status unknown — claims are unverified