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Superconducting films

Surface Impedance of Thin Superconducting Films

Surface Impedance of Thin Superconducting Films

... ~max0005 Page 001 SURFACE IMPEDANCE OF THIN SUPERCONDUCTING FILMS Thesis by Peter V Mason In Partial Fulfillment of the Requirements For the Degree of Doctor of Philosophy Califor nia Institute of Tec[.] ...

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Effect of Substrate Temperature on the Critical Current Density in the YBa2Cu3O7-x Superconducting Films

Effect of Substrate Temperature on the Critical Current Density in the YBa2Cu3O7-x Superconducting Films

... YBCO films, The crystalline structures were examined by using the X-ray diffraction (XRD), the surface morphologies were compared by using the scanning electron microscopy ...

7

Direct Experimental Evidence of the Statistical Nature of the Electron Gas in Superconducting Films

Direct Experimental Evidence of the Statistical Nature of the Electron Gas in Superconducting Films

... Now, N , and a stream of Fermi carriers will obey Fermi-Dirac statistics with ∆N along the lines of the HBT pioneering experiment on optical photons, let an experiment on quantum carri[r] ...

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Depairing currents in superconducting films of Nb and amorphous MoGe

Depairing currents in superconducting films of Nb and amorphous MoGe

... bridge widths. The differences are in the extent of the GL regime, which was only found down to t = 0.93 in the earlier experiments, and also in the temperature dependence below the GL regime. There, the temperature ...

5

Phase Transition in Superconducting Thin Films of Tl System Employing a One Zone Furnace and Deposited by Spray Pyrolysis

Phase Transition in Superconducting Thin Films of Tl System Employing a One Zone Furnace and Deposited by Spray Pyrolysis

... obtain superconducting films has the following phase transfor- mation route: Tl-2223 → Tl-2223 + Tl-2212 → Tl-2212 → Tl-1223, with the 7-hour period to achieve optimal phase of thallium ...involving ...

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Fluctuation conductivity of disordered superconductors in magnetic fields

Fluctuation conductivity of disordered superconductors in magnetic fields

... of superconducting films and wires in parallel magnetic fields, we perform a detailed comparison with results that were previously obtained with diagrammatic perturbation theory in the imaginary-time ...of ...

17

Pinning Forces in Superconductors from Periodic Ferromagnetic Dot Array

Pinning Forces in Superconductors from Periodic Ferromagnetic Dot Array

... the superconducting films have large values of penetration length λ and very small values of Ginzburg-Landau coherence length ξ, so that the simple London equation can be used to describe the magnetic field ...

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Preparation of Superconducting NbN Film

Preparation of Superconducting NbN Film

... NbN films are prepared by using the DC magnetron sputtering ...600℃.The superconducting temperature is decreases slightly ...the films is deposited at different substrate temperatures -50℃ to ...

5

Superconducting Transformers

Superconducting Transformers

... high-temperature superconducting (HTS) materials has renewed interest in the possibilities for superconducting power apparatus offering real economic benefit, within power ratings typical of present system ...

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Analysis of Possible Nonlocal Forces in Superconducting Materials

Analysis of Possible Nonlocal Forces in Superconducting Materials

... It is relevant to report that in [14] the authors of the same group recently pub- lished a paper in which a similar experiment involving superconducting devices was implemented in an improved version of the ...

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Strain tolerant microfilamentary superconducting wire

Strain tolerant microfilamentary superconducting wire

... discontinuous filaments have a length at least several orders of magnitude greater than the filament diameter and are sufficiently strong while in an amorphous state to withstand compaction. A normal metal is interposed ...

11

Superconductivity of the Platinum Metals and Their Alloys63-75

Superconductivity of the Platinum Metals and Their Alloys63-75

... Iron, cobalt and nickel, when present in solid solution, all considerably reduce the critical temperature of the superconducting platinum metals. Superconducting compounds[r] ...

13

Qubit decoherence due to detector switching

Qubit decoherence due to detector switching

... the superconducting quantum interference device (SQUID) [–], where switching occurs between the superconducting and dissi- pative state and is driven by quantum fluctuations, and the Josephson bifurcation ...

10

Muon studies of unconventional superconductors

Muon studies of unconventional superconductors

... As discussed in Sec. 2.4, materials in which the crystal structure maintains inversion symmetry, parity is a good quantum number. In these centrosymmetric materials, electron pairing states are expected to be purely ...

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Electrical Resistance of Superconductors

Electrical Resistance of Superconductors

... A theoretical model has been created to demonstrate and explain why some materials become superconducting at sufficiently low temperatures. (and thus exhibit zero electrical resistance), and why other materials do ...

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DC line to line short-circuit fault management in a turbo-electric aircraft propulsion system using superconducting devices

DC line to line short-circuit fault management in a turbo-electric aircraft propulsion system using superconducting devices

... planes. Superconducting devices could be an enabler for electric aviation due to their great potential for high efficiency and low ...the superconducting components presents a significant challenge, the ...

6

High-Quality CrO2 Nanowires for Dissipation-less Spintronics

High-Quality CrO2 Nanowires for Dissipation-less Spintronics

... Half-metallic ferromagnets are fully spin polarized and are expected to enhance the generation of triplet Cooper pairs [18], making them an ideal material choice for dissipation-less spintronics. This idea is indeed ...

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Superconductivity and Thermal Property of MgB2/Aluminum Matrix Composite Materials Fabricated by 3 Dimensional Penetration Casting Method

Superconductivity and Thermal Property of MgB2/Aluminum Matrix Composite Materials Fabricated by 3 Dimensional Penetration Casting Method

... As has been known, MgB2 is the Type II superconductor, and its superconducting transition temperature Tc is 39 K.1 Studies on MgB2 has focused on application for superconducting magnets[r] ...

7

The route to superconducting Sr2RuO4

The route to superconducting Sr2RuO4

... Comparing the calculated temperature dependent thin film thickness values (52–63 nm) to the values found through the XRD reflectivity scan (45–53 nm), a large deviation can be found. Once the layer-by-layer growth ...

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Evidence for orbital order and its relation to superconductivity in FeSe0 4Te0 6

Evidence for orbital order and its relation to superconductivity in FeSe0 4Te0 6

... The iron-chalcogenide superconductor FeSe0.4Te0.6 becomes superconducting at Tc ≈ 14 K 25 and maintains tetragonal symmetry in both the normal and the superconducting state down to 4 K; [r] ...

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