Abstract
The differential conductance, (dI/dV), on YBa2Cu3Oy/PrBa2Cu3O y/YBa2Cu3Oy (YBCO/PBCO/YBCO) sandwiched junctions and YBa2Cu3Oy/Y0.5Pr 0.5Ba2Cu3Oy (YBCO/YPBCO) superlattices was measured with STM at various temperature ranges to investigate the proximity effects. The dI/dV curves show conductance peaks at low temperatures and the energy gap, 2Δab, derived from the peaks is equal to about 46 meV for YBCO/PBCO/YBCO sandwiched junctions, which is consistent with the data obtained from reported data on YBCO single crystals whereas the YBCO/YPBCO ((120 Å/60 Å)x8) superlattices, due to the reduction of Tc, show smaller gap value.
| Original language | English |
|---|---|
| Pages (from-to) | 2443-2444 |
| Number of pages | 2 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 282 |
| Issue number | PART 4 |
| DOIs | |
| Publication status | Published - 1997 Aug |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Fingerprint Dive into the research topics of 'Scanning tunneling spectroscopy on YBa<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub>/PrBa<sub>2</sub>Cu<sub>3</sub>O <sub>y</sub>/YBa<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub> sandwiched junctions and YBa<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub>/Y<sub>0.5</sub>Pr <sub>0.5</sub>Ba<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub> superlattices'. Together they form a unique fingerprint.
Cite this
Yang, H. C., Yu, H. W., Kuo, C. C., Horng, H. E., & Yang, S. Y. (1997). Scanning tunneling spectroscopy on YBa2Cu3Oy/PrBa2Cu3O y/YBa2Cu3Oy sandwiched junctions and YBa2Cu3Oy/Y0.5Pr 0.5Ba2Cu3Oy superlattices. Physica C: Superconductivity and its applications, 282(PART 4), 2443-2444. https://doi.org/10.1016/S0921-4534(97)01290-2