TY - JOUR
T1 - Finger patterns of magnetic flux in bulk Bi2 Sr2 Ca Cu2 O8+δ samples
AU - Barness, D.
AU - Sinvani, M.
AU - Shaulov, A.
AU - Tamegai, T.
AU - Yeshurun, Y.
PY - 2008/3/20
Y1 - 2008/3/20
N2 - Fingerlike flux patterns, normally observed in superconducting films, are demonstrated in a bulk material. We observed such patterns in Bi2 Sr2 Ca Cu2 O8+δ crystals with an artificial barrier separating regions of different magnetic diffusivity, created by irradiating one-half of the crystal with heavy ions. Flux penetration from the nonirradiated part of the crystal, through the barrier, into the irradiated part forms fingerlike patterns in a wide range of temperatures and field ramping rates. The mechanism responsible for the observed patterns is discussed.
AB - Fingerlike flux patterns, normally observed in superconducting films, are demonstrated in a bulk material. We observed such patterns in Bi2 Sr2 Ca Cu2 O8+δ crystals with an artificial barrier separating regions of different magnetic diffusivity, created by irradiating one-half of the crystal with heavy ions. Flux penetration from the nonirradiated part of the crystal, through the barrier, into the irradiated part forms fingerlike patterns in a wide range of temperatures and field ramping rates. The mechanism responsible for the observed patterns is discussed.
UR - http://www.scopus.com/inward/record.url?scp=41549160627&partnerID=8YFLogxK
U2 - 10.1103/physrevb.77.094514
DO - 10.1103/physrevb.77.094514
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AN - SCOPUS:41549160627
SN - 1098-0121
VL - 77
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 9
M1 - 094514
ER -