Experimental Proof of Magnetic Flux Quantization in a Superconducting Ring

1961 ◽  
Vol 7 (2) ◽  
pp. 51-52 ◽  
Author(s):  
R. Doll ◽  
M. Näbauer
Keyword(s):  
Magnetic Flux ◽  
Experimental Proof ◽  
Superconducting Ring ◽  
Flux Quantization

scholarly journals Observation of half-quantum flux in the unconventional superconductor β-Bi2Pd

Science ◽  
2019 ◽  
Vol 366 (6462) ◽  
pp. 238-241 ◽  
Author(s):  
Yufan Li ◽  
Xiaoying Xu ◽  
M.-H. Lee ◽  
M.-W. Chu ◽  
C. L. Chien
Keyword(s):  
Magnetic Flux ◽  
Pairing Symmetry ◽  
Quantum Oscillation ◽  
Unconventional Superconductivity ◽  
Unconventional Superconductor ◽  
Quantum Bits ◽  
Flux Quantization ◽  
Triplet Pairing ◽  
Quantum Flux ◽  
Spin Triplet

Magnetic flux quantization is one of the defining properties of a superconductor. We report the observation of half-integer magnetic flux quantization in mesoscopic rings of superconducting β-Bi2Pd thin films. The half-quantum fluxoid manifests itself as a π phase shift in the quantum oscillation of the superconducting critical temperature. This result verifies unconventional superconductivity of β-Bi2Pd and is consistent with a spin-triplet pairing symmetry. Our findings may have implications for flux quantum bits in the context of quantum computing.

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.

Magnetic Flux Quantization in the Weak-Localization Regime of a Nonsuperconducting Metal

1984 ◽  
Vol 53 (7) ◽  
pp. 718-721 ◽  
Author(s):  
B. Pannetier ◽  
J. Chaussy ◽  
R. Rammal ◽  
P. Gandit
Keyword(s):  
Magnetic Flux ◽  
Weak Localization ◽  
Flux Quantization

Magnetic-flux quantization and electron localization in normal metal cylinders

Physica B+C ◽  
1984 ◽  
Vol 127 (1-3) ◽  
pp. 450-454
Author(s):  
M. Gijs ◽  
C. Van Haesendonck ◽  
Y. Bruynseraede
Keyword(s):  
Magnetic Flux ◽  
Normal Metal ◽  
Electron Localization ◽  
Flux Quantization

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

Demonstration of absolute magnetic-flux quantization in a superconducting circuit

1989 ◽  
Vol 62 (17) ◽  
pp. 2040-2043 ◽  
Author(s):  
B. Cabrera ◽  
C. E. Cunningham ◽  
D. Saroff
Keyword(s):  
Magnetic Flux ◽  
Superconducting Circuit ◽  
Flux Quantization

Pairing Symmetry and Flux Quantization in a Tricrystal Superconducting Ring ofYBa2Cu3O7−δ

1994 ◽  
Vol 73 (4) ◽  
pp. 593-596 ◽  
Author(s):  
C. C. Tsuei ◽  
J. R. Kirtley ◽  
C. C. Chi ◽  
Lock See Yu-Jahnes ◽  
A. Gupta ◽  
...  
Keyword(s):  
Pairing Symmetry ◽  
Superconducting Ring ◽  
Flux Quantization

Device fabrication by nanolithography and electroplating for magnetic flux quantization measurements

1984 ◽  
Vol 44 (10) ◽  
pp. 1011-1013 ◽  
Author(s):  
E. Kratschmer ◽  
A. Erko ◽  
V. T. Petrashov ◽  
H. Beneking
Keyword(s):  
Magnetic Flux ◽  
Device Fabrication ◽  
Flux Quantization
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