TY - JOUR
T1 - Topological hysteresis in the intermediate state of type-I superconductors
AU - Prozorov, Ruslan
AU - Giannetta, Russell W.
AU - Polyanskii, Anatolii A.
AU - Perkins, Garry K.
PY - 2005/12/1
Y1 - 2005/12/1
N2 - Magneto-optical imaging of thick stress-free lead samples reveals two distinct topologies of the intermediate state. Flux tubes are formed upon magnetic-field penetration (closed topology), and laminar patterns appear upon flux exit (open topology). Two-dimensional distributions of shielding currents were obtained by applying an efficient inversion scheme. Quantitative analysis of the magnetic induction distribution and correlation with magnetization measurements indicate that observed topological differences between the two phases are responsible for experimentally observable magnetic hysteresis.
AB - Magneto-optical imaging of thick stress-free lead samples reveals two distinct topologies of the intermediate state. Flux tubes are formed upon magnetic-field penetration (closed topology), and laminar patterns appear upon flux exit (open topology). Two-dimensional distributions of shielding currents were obtained by applying an efficient inversion scheme. Quantitative analysis of the magnetic induction distribution and correlation with magnetization measurements indicate that observed topological differences between the two phases are responsible for experimentally observable magnetic hysteresis.
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U2 - 10.1103/PhysRevB.72.212508
DO - 10.1103/PhysRevB.72.212508
M3 - Article
AN - SCOPUS:29744454090
VL - 72
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 21
M1 - 212508
ER -