Handbook of High Temperature Superconductor Electronics Part 10 pptx

... frequency (2.5–80 GHz). For each temperature, the gray zone width has a minimum at low pulse rates of 10 15 ␮A, where the I c of each junction was around 100 ␮A. The width of the gray zone increased ... I c R n product of HTS junctions can also be expected to be larger than that of LTS junctions because it intrinsically depends on the gap voltage of the superconductor. A numbe...

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... 10 High- Temperature Superconductor Microwave Devices Neeraj Khare 11 High- Temperature Superconducting IR Detectors John C. Brasunas 12 Cryocoolers and High- T c Devices Ray Radebaugh 13 High- Temperature ... Conductance Noise in High- Temperature Superconductors László Béla Kish 6 Noise in High- Temperature Superconductor Josephson Junctions J.C. Macfarlane, L. Hao, an...

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... Symmetry of Order Parameter of High- T c Superconductors. In: A Narlikar, ed. Studies of High Temperature Superconductor vol 20 New York: Nova Science Publishers, 1996, pp 187–215. Introduction to High- Temperature ... CRYSTAL STRUCTURE OF HIGH- T c SUPERCONDUCTORS The structure of a high- T c superconductor is closely related to perovskite struc- ture. The unit cell...

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... dislocation densities of ϳ 10 9 /cm 2 with unit-cell-step distances of 30 nm, films grown by LPE have microspiral densities on the order of 10 3 /10 4 /cm 2 and interstep distances of up to 3 ␮m (63). ... pre- carious balance between the high temperatures required to form the superconduct- ing phases and the high volatility of Tl at these temperatures. The partial pressure...

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... anisotropic nature of high- temperature superconductor materials, mismatch in the lattice and thermal expansion coefficient between the superconductor and N-layer, chemical incompatibility between the superconductor ... the fabrica- tion of high- temperature superconducting ramp-edge SNS junctions and SQUIDs. 86 Jia F IGURE 3.1 Cross-sectional diagram of a ramp-edge superco...

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... estimate J c (4.2 K) Ϸ 10 4 10 5 A/cm 2 and J c (77 K) Ϸ 10 3 10 4 A/cm 2 . The value of ␳ N is of the order of 10 -7 10 -9 ⍀ и cm 2 and is almost independent of the temperature. Step-Edge ... Junctions 115 FIGURE 4 .10 High- temperature TEM image of the GB formed at the bottom edge of a high- angle LaAlO 3 step. (From Ref. 22.) F IGURE 4.11 (a) Sketch of the...

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... 5.3.1.1 “Bulk” Temperature Regime At the high- temperature part of the conductorn superconductor transition region, when the resistance has significantly decreased (the onset of superconductivity has ... independent of the temperature. Note: Although a significant part of HTS samples show this behavior especially materials of lower quality, the bulk regime is often missin...

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... resistance R of the junction that is typically ␻ 0 ϳ 10 10 10 11 s -1 . The strong temperature dependence of the spectral density S(␻) near the transition temperature is associated with the variation of ... critical current densities of the order of 10 6 10 7 A/cm 2 are required, often in the presence of magnetic fields. Critical current density is not an intrinsic pro...

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... even 10% of the wall thickness has also been detected success- fully by scanning the outside surface of the rim (138). A demonstration of capability of high- T c SQUID NDE in the detection of deep ... three-component rem- anance vectors with a minimum of operator intervention. Measurement of rem- anance values ranging from 10 to 10 Ϫ5 A/m with errors of 1 ϫ 10 Ϫ5 A/m h...

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... out of a superconductor is ex- ␮ 2 0 ␻ 2 ␭ 3 L n n e 2 ␶ ᎏᎏ 2m High- T c Superconductor Microwave Devices 321 TABLE 10. 2 Techniques Used for the Measurement of Surface Resistance of High- T c Superconductors Cavity ... of the symmetry of the order parameter. Section 1.5.8 of Chapter 1 gives a detailed account of these measurements. The presence of s- or d-wave symmetry...

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