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| Hauptseite > Publikationsdatenbank > High-Tc Josephson Junctions as Quasiclassical THz Detectors > print |
| Hauptseite > Publikationsdatenbank > High-Tc Josephson Junctions as Quasiclassical THz Detectors > print |
| 001 | 860953 | ||
| 005 | 20240610120415.0 | ||
| 024 | 7 | _ | |a 10.1109/TASC.2018.2822800 |2 doi |
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| 024 | 7 | _ | |a 1558-2515 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2019-01594 |
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| 100 | 1 | _ | |a Gundareva, Irina |0 P:(DE-Juel1)144210 |b 0 |u fzj |
| 245 | _ | _ | |a High-Tc Josephson Junctions as Quasiclassical THz Detectors |
| 260 | _ | _ | |a New York, NY |c 2018 |b IEEE |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a [100]-tilt YBa 2 Cu 3 O 7-x bicrystal Josephson junctions (JJs) with resistances R n = (50-500) Ω and characteristic voltages I c R n (50 K) of 2.5 mV have been fabricated and their potential as classical terahertz detectors has been evaluated. The dc I-V curves of the JJs at temperatures T above 40 K have been found free of hysteresis and demonstrated high nonlinearity with the second derivatives d 2 V/dI 2 up to 10 7 -10 8 Ω/A at T = 50 K. The response ΔV(I) at the current I corresponding to the maximum of d 2 V/dI 2 has been observed in a power range of more than four orders of magnitude, and ΔV is directly proportional to the incident power P (square-law detection) at low power, then ΔV ~ P 1/2 (linear detection) at higher power. The responses ΔV(V) at low voltages V to external radiation with the frequencies from 0.05 to 3 THz have been experimentally found to be proportional to d 2 V/dI 2 (classical detection) at low frequencies and to dV/dI (Josephson detection) at high frequencies with a crossover near the low-frequency limit f l = (0.9 ± 0.3) THz of the ac Josephson effect in our JJs. Numerical simulations of such quasiclassical detector with R n = 300 Ω at T = 50 K predict the NEP-values of 5·10 -15 W/Hz 1/2 at the frequencies up to 1 THz. |
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| 700 | 1 | _ | |a Pavlovskiy, Valery |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Divin, Yuriy |0 P:(DE-Juel1)130621 |b 2 |
| 773 | _ | _ | |a 10.1109/TASC.2018.2822800 |g Vol. 28, no. 4, p. 1 - 5 |0 PERI:(DE-600)2025387-4 |n 4 |p 1 - 5 |t IEEE transactions on applied superconductivity |v 28 |y 2018 |x 1558-2515 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/860953/files/08331140.pdf |y Restricted |
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