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Search for "characteristic frequency" in Full Text gives 14 result(s) in Beilstein Journal of Nanotechnology.
Coherent amplification of radiation from two phase-locked Josephson junction arrays
Beilstein J. Nanotechnol. 2022, 13, 1445–1457, doi:10.3762/bjnano.13.119
- estimated as ≃300 V/W. Results Figure 2a shows the individually measured IVCs of array-a and array-b of sample-1 (Figure 1a,b). The critical current in both arrays is Ic = 2.0–2.1 mA and the characteristic frequency, estimated within the resistively shunted junction (RSJ) model, is in the range of fc ∼ 100
A superconducting adiabatic neuron in a quantum regime
Beilstein J. Nanotechnol. 2022, 13, 653–665, doi:10.3762/bjnano.13.57
- critical current Ic, determines the plasma frequency of the JJ, In this case, the dissipative properties of the system are determined by the Josephson characteristic frequency ωc = 2eRIcℏ (here, R and C are the normal state resistance and capacitance of the Josephson junction, respectively). Dynamic
Nonmonotonous temperature dependence of Shapiro steps in YBCO grain boundary junctions
Beilstein J. Nanotechnol. 2021, 12, 1279–1285, doi:10.3762/bjnano.12.95
- are in agreement with the calculations based on the resistively–capacitively shunted junction model and Bessel theory. The emergence of the receiving optima is explained by the mutual influence of the varying critical current and the characteristic frequency. Keywords: characteristic frequency
- depends on the characteristic frequency ωc = 2eIcRN/ℏ of the JJ. Results First, the current–voltage characteristics (IVCs) were measured, and the value of the critical current as a function of temperature was found, see Figure 1. The Ic(T) dependence is similar to the experimental observations for other
- not as good as in the region of high T values. The second important parameter is the characteristic frequency ωc (or Fc) (see the inset of Figure 1). The change of ωc radically affects the response of the system to an external MW signal [17]. Essentially, the ωmw/ωc (or Fmw/Fc) ratio determines if the
Structural and electronic properties of SnO2 doped with non-metal elements
Beilstein J. Nanotechnol. 2020, 11, 1321–1328, doi:10.3762/bjnano.11.116
- characteristic frequency of the material. The plasma oscillation frequencies vary for different crystal materials. In general, it is proportional to the concentration of free electrons. When the vibration frequency of the incident light is greater than the plasma oscillation frequency, the crystal material is
Microwave photon detection by an Al Josephson junction
Beilstein J. Nanotechnol. 2020, 11, 960–965, doi:10.3762/bjnano.11.80
- particle moves along the potential in the presence of friction, the strength of which is characterized by α = ωp/ωc, where is the plasma frequency, ωc = 2eICRN/ℏ is the characteristic frequency, RN is the normal state resistance and C is the capacitance. The superconducting state of the JJ corresponds to
Hexagonal boron nitride: a review of the emerging material platform for single-photon sources and the spin–photon interface
Beilstein J. Nanotechnol. 2020, 11, 740–769, doi:10.3762/bjnano.11.61
Heating ability of magnetic nanoparticles with cubic and combined anisotropy
Beilstein J. Nanotechnol. 2019, 10, 305–314, doi:10.3762/bjnano.10.29
- rather large SAR values, on the order of 200–250 W/g, at a characteristic frequency f = 300 kHz and a moderate magnetic field amplitude H0 = 100 Oe. These SAR values correspond to assemblies of interacting magnetite nanoparticles distributed in a biological medium. The use of moderate magnetic field
Beyond Moore’s technologies: operation principles of a superconductor alternative
Beilstein J. Nanotechnol. 2017, 8, 2689–2710, doi:10.3762/bjnano.8.269
- Boltzmann constant. The characteristic frequency of a Josephson junction switching process, ωc, is determined by the parameters of the Josephson junction, ωc = (2π/Φ0)IcRn, where IcRn is the characteristic voltage of the Josephson junction with Rn being the junction resistance in the normal state. Since SIS
- junctions possess a large capacitance, they are usually shunted by external resistors to avoid LC resonances. The resistance Rn is approximately equal to the resistance of the shunt, Rn ≈ Rs, because Rs is much smaller than the tunnel junction resistance. For Nb-based junctions the characteristic frequency
- circuit operation. The circuit speed is effectively a product of clock frequency and pipeline depth. The maximum clock frequency of RQL circuits can be estimated as fmax ≈ 17 GHz under the assumption of a characteristic frequency of the Josephson junction, ωc/2π = 350 GHz and N = 8 Josephson junctions in
Modelling focused electron beam induced deposition beyond Langmuir adsorption
Beilstein J. Nanotechnol. 2017, 8, 2151–2161, doi:10.3762/bjnano.8.214
- characteristic frequencies {v1, v2, ve, vGAS, vGR}. Figure 3 shows three types of maps, associated to three standard conditions: Constant temperature (Figure 3a–c), constant current (Figure 3d–f) and constant precursor flux (Figure 3g–i). Each case is normalized by the corresponding characteristic frequency (v2
Phenalenyl-based mononuclear dysprosium complexes
Beilstein J. Nanotechnol. 2016, 7, 995–1009, doi:10.3762/bjnano.7.92
- small external dc field. The characteristic frequency for compound 1 is 315 Hz at 1.8 K under zero field, whereas it decreases to 180 Hz under a dc field of 200 Oe. Thus, similar to what has been observed for some SMMs earlier, a small external dc field indeed slows down the relaxation due to the
3D solid supported inter-polyelectrolyte complexes obtained by the alternate deposition of poly(diallyldimethylammonium chloride) and poly(sodium 4-styrenesulfonate)
Beilstein J. Nanotechnol. 2016, 7, 197–208, doi:10.3762/bjnano.7.18
- -cut quartz crystals were cleaned with piranha solution (70% H2SO4/30% H2O2) over a period of thirty minutes and then thoroughly rinsed with pure water. The characteristic frequency of the quartz crystal in vacuum was f0 ≈ 5 MHz. A self-assembled monolayer of sodium 3-mercapto-1-propanesulfonate was
Magnetic reversal dynamics of a quantum system on a picosecond timescale
Beilstein J. Nanotechnol. 2015, 6, 1946–1956, doi:10.3762/bjnano.6.199
- (here τ ≡ T) gives rise to the usual Rabi oscillations with characteristic frequency of . The reason for this lies in the nonadiabatic tendency of such a pulse, and therefore, its rather large spectral that which covers the energy shift between two levels. The case of the fluxon pulse is of great
Production, detection, storage and release of spin currents
Beilstein J. Nanotechnol. 2015, 6, 736–743, doi:10.3762/bjnano.6.75
- the characteristic frequency is proportional to the hopping integral. This suggests that higher frequencies than those reported in the literature could be attained. In Figure 3 and Figure 4, the storage rings have 27 sites, the ring-cubes connections have 13 sites and the cube–cube connection has 6
Entropy effects in the collective dynamic behavior of alkyl monolayers tethered to Si(111)
Beilstein J. Nanotechnol. 2015, 6, 583–594, doi:10.3762/bjnano.6.60
- been identified with, respectively, a weak (fA) and a strong (fB) temperature dependence of the relaxation frequencies [32]. At low temperatures (T < 150 K), only mechanism A is observed at intermediate frequencies (fA ≈ 4 × 103 Hz in Figure 2b). The characteristic frequency fA is basically bias
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