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pro vyhledávání: '"Clem, John R"'
The equilibrium topology of superconducting and normal domains in flat type-I superconductors is investigated. Important improvements with respect to previous work are: (1) the energy of the external magnetic field, as deformed by the presence of sup
Externí odkaz:
http://arxiv.org/abs/1306.6830
Autor:
Clem, John R, Malozemoff, A P
Minimization of ac losses is essential for economic operation of high-temperature superconductor (HTS) ac power cables. A favorable configuration for the phase conductor of such cables has two counter-wound layers of HTS tape-shaped wires lying next
Externí odkaz:
http://arxiv.org/abs/1304.6754
Autor:
Clem, John R.
The geometric, kinetic, and total inductances and the attenuation constant are theoretically analyzed for a thin-film superconducting coplanar waveguide (CPW) resonator consisting of a current-carrying central conductor, adjacent slots, and ground pl
Externí odkaz:
http://arxiv.org/abs/1210.5929
Autor:
Clem, John R., Kogan, V. G.
We use both Eilenberger-Usadel and Ginzburg-Landau (GL) theory to calculate the superfluid's temperature-dependent kinetic inductance for all currents up to the depairing current in thin and narrow superconducting films. The calculations apply to BCS
Externí odkaz:
http://arxiv.org/abs/1207.6421
The critical current of a thin superconducting strip of width $W$ much larger than the Ginzburg-Landau coherence length $\xi$ but much smaller than the Pearl length $\Lambda = 2 \lambda^2/d$ is maximized when the strip is straight with defect-free ed
Externí odkaz:
http://arxiv.org/abs/1111.5233
Autor:
Clem, John R., Berggren, Karl K.
In this paper we calculate the critical currents in thin superconducting strips with sharp right-angle turns, 180-degree turnarounds, and more complicated geometries, where all the line widths are much smaller than the Pearl length $\Lambda = 2 \lamb
Externí odkaz:
http://arxiv.org/abs/1109.4881
Autor:
Clem, John R.
In this paper I show how to calculate the effect of a nearby Pearl vortex or antivortex upon the critical current $I_c(B)$ when a perpendicular magnetic induction $B$ is applied to a planar Josephson junction in a long, thin superconducting strip of
Externí odkaz:
http://arxiv.org/abs/1109.1582
Publikováno v:
Supercond. Sci. Technol. 24 062002 (2011)
We discuss predictions of five proposed theories for the critical state of type-II superconductors accounting for both flux cutting and flux transport (depinning). The theories predict different behaviours for the ratio $E_y/E_z$ of the transverse an
Externí odkaz:
http://arxiv.org/abs/1103.1393
Autor:
Clem, John R.
I introduce a critical-state theory incorporating both flux cutting and flux transport to calculate the magnetic-field and current-density distributions inside a type-II superconducting cylinder at its critical current in a longitudinal applied magne
Externí odkaz:
http://arxiv.org/abs/1102.3678
Autor:
Clem, John R.
I consider a Corbino-geometry SNS (superconducting-normal-superconducting) Josephson weak link in a thin superconducting film, in which current enters at the origin, flows outward, passes through an annular Josephson weak link, and leaves radially. I
Externí odkaz:
http://arxiv.org/abs/1008.5094