TY - JOUR
T1 - Influence of irradiation-induced latent tracks on local flux pinning in bi-2212 crystals
AU - Leghissa, M.
AU - Schuster, Th
AU - Gerhäuser, W.
AU - Klaumünzer, S.
AU - Koblischka, M. R.
AU - Kronmüller, H.
AU - Kuhn, H.
AU - Neumüller, H. W.
AU - Saemann-Ischenko, G.
PY - 1992/6/15
Y1 - 1992/6/15
N2 - For the first time the influence of irradiation-induced columnar defects (0.5 GeV I-ions) on flux line pinning in Bi-2212 crystals has been investigated by means of the high-resolution magneto-optical Faraday effect. By irradiating only a part of each sample, the local change in the flux pinning has been determined. Irradiated and nonirradiated parts have been investigated simultaneously under the same experimental conditions. At T = 5 K and μ0Hext = (0 4 300) mT a large enhancement of jc m is found in the irradiated region. The observation of the time dependence of the flux density distribution yields small values for the pinning potential U, supporting the model of two-dimensional pancake vortex pinning.
AB - For the first time the influence of irradiation-induced columnar defects (0.5 GeV I-ions) on flux line pinning in Bi-2212 crystals has been investigated by means of the high-resolution magneto-optical Faraday effect. By irradiating only a part of each sample, the local change in the flux pinning has been determined. Irradiated and nonirradiated parts have been investigated simultaneously under the same experimental conditions. At T = 5 K and μ0Hext = (0 4 300) mT a large enhancement of jc m is found in the irradiated region. The observation of the time dependence of the flux density distribution yields small values for the pinning potential U, supporting the model of two-dimensional pancake vortex pinning.
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U2 - 10.1209/0295-5075/19/4/013
DO - 10.1209/0295-5075/19/4/013
M3 - Letter
AN - SCOPUS:84912980851
VL - 19
SP - 323
EP - 328
JO - Lettere Al Nuovo Cimento
JF - Lettere Al Nuovo Cimento
SN - 0295-5075
IS - 4
ER -