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. (2024)
Electron transport and microwave dynamics of hybrid Nb/Au/CaSrCuO/YBaCuO planar Josephson junctions.
In: Journal of Physics: Conference Series, 2010, 234 (4)
doi: 10.26083/tuprints-00020664
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | 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. |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Electron transport and microwave dynamics of hybrid Nb/Au/CaSrCuO/YBaCuO planar Josephson junctions |
| Sprache: | Englisch |
| Publikationsjahr: | 12 Februar 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 1 Juni 2010 |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Physics: Conference Series |
| Jahrgang/Volume einer Zeitschrift: | 234 |
| (Heft-)Nummer: | 4 |
| Kollation: | 5 Seiten |
| DOI: | 10.26083/tuprints-00020664 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/20664 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (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. |
| ID-Nummer: | Artikel-ID: 042004 |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-206645 |
| Zusätzliche Informationen: | 9th European Conference on Applied Superconductivity (EUCAS 09) |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Dünne Schichten |
| Hinterlegungsdatum: | 12 Feb 2024 14:45 |
| Letzte Änderung: | 13 Feb 2024 07:39 |
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- Electron transport and microwave dynamics of hybrid Nb/Au/CaSrCuO/YBaCuO planar Josephson junctions. (deposited 12 Feb 2024 14:45) [Gegenwärtig angezeigt]
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