Constantinian, K. Y. ; Ovsyannikov, G. A. ; Kislinskii, Y. V. ; Shadrin, A. V. ; Borisenko, I. V. ; Komissinskiy, P. V. ; Zaitsev, A. V. ; Mygind, J. ; Winkler, D. (2010)
Electron transport and microwave dynamics of hybrid Nb/Au/CaSrCuO/YBaCuO planar Josephson junctions.
In: Journal of Physics: Conference Series, 234 (4)
doi: 10.1088/1742-6596/234/4/042004
Article, Bibliographie
This is the latest version of this item.
Abstract
We report on measurements of dc electron transport and microwave dynamics of thin film hybrid Josephson junctions with an oxide antiferromagnetic interlayer. The base superconducting electrode YBaCuO and the antiferromagnetic (AF) interlayer CaSrCuO (with thickness d = 20 - 70 nm) were grown by laser ablation on NdGaO3 substrates. I-V curves were well fitted to RSJ model and had no excess current, ICRN products were of order 0.2 mV at T=4.2 K. We did not observe any noticeable reduction of ICRN with increasing d. Such “tunnellike” behaviour also resulted in appearance of singularities on I-V curve when magnetic field was applied. Oscillating with microwave power integer and half-integer Shapiro steps were registered along with sub-harmonic detector response. Moreover, for some of junctions a “devil” staircase structure was observed on I-V curves and giant noise-like signals were measured in 1-2 GHz band at the certain levels of microwave power. Observed features, noise performance and the impact of the second harmonic in current-phase relation on junction dynamics are discussed taking into account data for structures without AF interlayer.
| Item Type: | Article |
|---|---|
| Erschienen: | 2010 |
| Creators: | Constantinian, K. Y. ; Ovsyannikov, G. A. ; Kislinskii, Y. V. ; Shadrin, A. V. ; Borisenko, I. V. ; Komissinskiy, P. V. ; Zaitsev, A. V. ; Mygind, J. ; Winkler, D. |
| Type of entry: | Bibliographie |
| Title: | Electron transport and microwave dynamics of hybrid Nb/Au/CaSrCuO/YBaCuO planar Josephson junctions |
| Language: | English |
| Date: | 2010 |
| Publisher: | IOP Science |
| Journal or Publication Title: | Journal of Physics: Conference Series |
| Volume of the journal: | 234 |
| Issue Number: | 4 |
| Collation: | 5 Seiten |
| DOI: | 10.1088/1742-6596/234/4/042004 |
| Corresponding Links: | |
| Abstract: | We report on measurements of dc electron transport and microwave dynamics of thin film hybrid Josephson junctions with an oxide antiferromagnetic interlayer. The base superconducting electrode YBaCuO and the antiferromagnetic (AF) interlayer CaSrCuO (with thickness d = 20 - 70 nm) were grown by laser ablation on NdGaO3 substrates. I-V curves were well fitted to RSJ model and had no excess current, ICRN products were of order 0.2 mV at T=4.2 K. We did not observe any noticeable reduction of ICRN with increasing d. Such “tunnellike” behaviour also resulted in appearance of singularities on I-V curve when magnetic field was applied. Oscillating with microwave power integer and half-integer Shapiro steps were registered along with sub-harmonic detector response. Moreover, for some of junctions a “devil” staircase structure was observed on I-V curves and giant noise-like signals were measured in 1-2 GHz band at the certain levels of microwave power. Observed features, noise performance and the impact of the second harmonic in current-phase relation on junction dynamics are discussed taking into account data for structures without AF interlayer. |
| Identification Number: | Artikel-ID: 042004 |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Advanced Thin Film Technology |
| Date Deposited: | 29 Mar 2012 11:30 |
| Last Modified: | 13 Feb 2024 07:40 |
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Electron transport and microwave dynamics of hybrid Nb/Au/CaSrCuO/YBaCuO planar Josephson junctions. (deposited 12 Feb 2024 14:45)
- Electron transport and microwave dynamics of hybrid Nb/Au/CaSrCuO/YBaCuO planar Josephson junctions. (deposited 29 Mar 2012 11:30) [Currently Displayed]
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