scholarly journals Isolated hybrid normal/superconducting ring in a magnetic flux: From persistent current to Josephson current

2003 ◽  
Vol 67 (18) ◽  
Author(s):  
Jérôme Cayssol ◽  
Takis Kontos ◽  
Gilles Montambaux
Keyword(s):  
Magnetic Flux ◽  
Josephson Current ◽  
Persistent Current ◽  
Superconducting Ring

Fractional magnetic flux transition in two-band single-junction superconducting rings

2019 ◽  
Vol 33 (05) ◽  
pp. 1950054
Author(s):  
Hai Huang ◽  
Jian-Jiang Zhang ◽  
Xia Huang
Keyword(s):  
Magnetic Flux ◽  
Phase Difference ◽  
Soliton Solution ◽  
Electromagnetic Properties ◽  
Current Phase ◽  
Ginzburg Landau ◽  
Single Junction ◽  
Superconducting Ring ◽  
Circulating Current ◽  
Junction Structure

Based on Ginzburg–Landau (GL) theory, we study the electromagnetic properties of two-band superconducting ring with a microbridge structure. The phase difference of two-order parameters in two-band superconductors satisfies the sine-Gordon equation, and from its soliton solution, the linear relation between the phase difference at both ends of the junction and total magnetic flux in the ring can be obtained. Then with the Josephson current-phase relation in the two-band superconducting microbridge, we establish the dependence of the circulating current and total magnetic flux on the applied external magnetic field. Our analysis shows that the soliton solution and the fractional flux quantization in two-band superconductors can be verified by measuring the properties of this single-junction structure.

scholarly journals Magnetic flux noise in the three-Josephson-junction superconducting ring

2008 ◽  
Vol 34 (6) ◽  
pp. 413-417 ◽  
Author(s):  
E. Il’ichev ◽  
A. N. Omelyanchouk
Keyword(s):  
Magnetic Flux ◽  
Josephson Junction ◽  
Superconducting Ring ◽  
Flux Noise

scholarly journals Influence of Josephson current second harmonic on stability of magnetic flux in long junctions

2010 ◽  
Vol 248 ◽  
pp. 012044 ◽  
Author(s):  
P K H Atanasova ◽  
T L Boyadjiev ◽  
Y U M Shukrinov ◽  
E V Zemlyanaya ◽  
P Seidel
Keyword(s):  
Magnetic Flux ◽  
Second Harmonic ◽  
Josephson Current

Persistent current of a Hubbard ring threaded with a magnetic flux

1992 ◽  
Vol 45 (20) ◽  
pp. 11795-11804 ◽  
Author(s):  
Naichang Yu ◽  
Michael Fowler
Keyword(s):  
Magnetic Flux ◽  
Persistent Current

Spontaneous magnetic-flux generation in superconducting ring

2001 ◽  
Vol 53 (2) ◽  
pp. 240-245 ◽  
Author(s):  
M Ghinovker ◽  
B. Ya Shapiro ◽  
I Shapiro
Keyword(s):  
Magnetic Flux ◽  
Superconducting Ring

scholarly journals Distribution of magnetic field around simply and multiply connected supraconductors

1936 ◽  
Vol 157 (890) ◽  
pp. 132-146 ◽  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Magnetic Flux ◽  
Meissner Effect ◽  
The Body ◽  
Persistent Current ◽  
Closed Circuit ◽  
Multiply Connected ◽  
Constant Flux ◽  
Connected Body

The experiments to be described in this paper arose from a suggestion by M. von Laue that it would be of interest to examine more closely the behaviour of simply and multiply connected supraconducting bodies in an external magnetic field. If a closed circuit be taken wholly within a supraconducting body, sufficiently far from the surface, the magnetic flux through the circuit should be constant as long as no part of the body is subjected to a magnetic field greater than the critical field strength. For a simply connected body, if the spontaneous ejection of flux on cooling through the transition point, the so-called Meissner effect, is complete, the constant flux through any circuit should be zero. For a multiply connected body, it should be equal to the value immediately after the body became supraconducting. Only in the case of a multiply connected body, that is, a closed circuit, can there be a resultant current through any cross-section in the steady state. This may be taken as a definition of the current I in the circuit, the so-called persistent current. Let L be the self-inductance of the circuit, calculated for the supraconducting state on the assumption that the current flows entirely in a layer very close to the surface. Let ϕ be the calculated magnetic flux through the circuit due to external magnetic field, allowing for the distortion of the field by the presence of supraconducting material. Then, if it can be assumed that the maintenance of the constant flux through the closed circuit is due to a persistent current in the above sense, the law of constant flux can be written in the form LI + ϕ = ϕ 0 . (1)

scholarly journals Persistent current and zero-energy Majorana modes in a p -wave disordered superconducting ring

2017 ◽  
Vol 95 (15) ◽  
Author(s):  
Andrea Nava ◽  
Rosa Giuliano ◽  
Gabriele Campagnano ◽  
Domenico Giuliano
Keyword(s):  
Persistent Current ◽  
P Wave ◽  
Zero Energy ◽  
Superconducting Ring ◽  
Majorana Modes
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