Abstract
Nb/Al-AlOx/Nb tunnel junctions designed for x-ray detection have been manufactured and characterized at temperatures down to 0.35 K. At a bias voltage of 0.5 mV, a leakage current of the order of 0.1 pA/μm2, and a dynamic resistance exceeding 106 times the normal state resistance, were achieved in junctions with dimensions up to 200×200 μm2 and critical current densities of order 200 A/cm2. The combination of high critical current density, low leakage current, and large area represents an important step towards the development of superconducting tunnel junction detectors with improved spectroscopic performance.
| Original language | English |
|---|---|
| Pages (from-to) | 702-704 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 68 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Dec 1 1996 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Fingerprint Dive into the research topics of 'High quality Nb/Al-AlOx/Nb superconducting tunnel junctions for radiation detection'. Together they form a unique fingerprint.
Cite this
Joosse, K., Nakagawa, H., Akoh, H., Takada, S., Maehata, K., & Ishibashi, K. (1996). High quality Nb/Al-AlOx/Nb superconducting tunnel junctions for radiation detection. Applied Physics Letters, 68(5), 702-704. https://doi.org/10.1063/1.116597