𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Role of pair-breaking and phase fluctuations in c-axis tunneling in underdoped Bi2Sr2CaCu2O8+δ

✍ Scribed by C.J. van der Beek; P. Spathis; S. Colson; P. Gierlowski; M. Gaifullin; Yuji Matsuda; P.H. Kes

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
223 KB
Volume
460-462
Category
Article
ISSN
0921-4534

No coin nor oath required. For personal study only.

✦ Synopsis

The Josephson plasma resonance is used to study the c-axis supercurrent in the superconducting state of underdoped Bi 2 Sr 2 Ca-Cu 2 O 8+d with varying degrees of controlled point-like disorder, introduced by high-energy electron irradiation. As disorder is increased, the Josephson Plasma frequency decreases proportionally to the critical temperature. The temperature dependence of the plasma frequency does not depend on the irradiation dose, and is in quantitative agreement with a model for quantum fluctuations of the superconducting phase in the CuO 2 layers.

📜 SIMILAR VOLUMES

Interlayer tunnel and thermal activation
Interlayer tunnel and thermal activation in c-axis transport in Bi2Sr2CaCu2O8+δ
✍ M. Giura; R. Fastampa; S. Sarti; N. Pompeo; E. Silva 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 132 KB

We present a phenomenological model for the electrical transport in double-layered cuprates, based on the existence of two energy barriers along the c-axis. The model is applied to measurements of the dc resistivity in Bi 2 Sr 2 CaCu 2 O 8+d single crystals. We find that the model gives a comprehens

Josephson tunneling in Bi2Sr2CaCu2O8+δ s
Josephson tunneling in Bi2Sr2CaCu2O8+δ single-crystal break junctions
✍ H.J. Tao; Farun Lu; G. Zhang; E.L. Wolf 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 272 KB

Josephson tunneling I-V characteristics have been observed in break j unctions of oxygen-annealed Bi2Sr2CaCu2Os (Bi-2212 ) single crystals, with foR. ~ 21.3 mV, and with a sharp quasipartiele edge at 2zt ~ 2 × 20 mV. This demonstrates that low values of the IoR. product, thus far as observed in HTS

Josephson junction character along the c
Josephson junction character along the c-axis in Bi2Sr2CaCu2O8+δ
✍ Kazuo Kadowaki; Takashi Mochiku 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 133 KB

Critical currents along the c-axis have been studied in single crystalline Bi2Sr2CaCu208+ 8 in magnetic fields. It is ohserved that the current-voltage relation has a sudden jump with a characteristic hysteresis, reminiscent of the typical Josephson junction character. The maximum critical current d