TY - JOUR
T1 - Staircase penetration of magnetic flux into a superconducting flat ring
AU - Burlachkov, Leonid
AU - Fuzailov, Nikita
N1 - Publisher Copyright:
© 2023 American Physical Society.
PY - 2023/6/1
Y1 - 2023/6/1
N2 - We analyzed the distribution of the Meissner shielding currents in a flat superconducting ring and quantitatively described the penetration of magnetic avalanches (dendrites) inside it. Using a recurrent procedure, the external field Hext, in which a perforating (edge to edge crossing) avalanche appears, is calculated. A staircase dependence of the mean field trapped inside a ring, (H) vs Hext, is comprehensively described. A staircase slope appears to be a universal function of a ring shape (inner to outer diameter ratio). The heat released by a penetrating dendrite grows linearly with each next perforation. Flux pinning, if present, modifies a staircase dependence and makes steps smaller, but does not change the staircase slope. Our theoretical results are in a good accordance with the experimental data.
AB - We analyzed the distribution of the Meissner shielding currents in a flat superconducting ring and quantitatively described the penetration of magnetic avalanches (dendrites) inside it. Using a recurrent procedure, the external field Hext, in which a perforating (edge to edge crossing) avalanche appears, is calculated. A staircase dependence of the mean field trapped inside a ring, (H) vs Hext, is comprehensively described. A staircase slope appears to be a universal function of a ring shape (inner to outer diameter ratio). The heat released by a penetrating dendrite grows linearly with each next perforation. Flux pinning, if present, modifies a staircase dependence and makes steps smaller, but does not change the staircase slope. Our theoretical results are in a good accordance with the experimental data.
UR - http://www.scopus.com/inward/record.url?scp=85164019752&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.107.224519
DO - 10.1103/PhysRevB.107.224519
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AN - SCOPUS:85164019752
SN - 2469-9950
VL - 107
JO - Physical Review B
JF - Physical Review B
IS - 22
M1 - 224519
ER -