TY - JOUR
T1 - Evidence for a directed δtc-type flux pinning by means of nanostripes in (Sm0.33Eu0.33Gd0.33)Ba 2Cu3Oy high-Tc superconductors
AU - Koblischka, M. R.
AU - Hartmann, U.
PY - 2010/3/23
Y1 - 2010/3/23
N2 - By means of four-point transport measurements on bulk, high-Tc superconducting samples of composition (Sm0.33Eu 0.33Gd0.33)Ba2Cu3Oy exhibiting self-organized nanostripes formed by nanoclusters of the light-rare-earth-rich phase, we find that at temperatures close to the transition temperature the currents flowing parallel to the nanostripes are clearly larger than in the perpendicular direction. Constructing a pinning force diagram from the jc(Ha)-data obtained, we find strong evidence for a dominating δTc-pinning when the currents are flowing parallel to the nanostripes.
AB - By means of four-point transport measurements on bulk, high-Tc superconducting samples of composition (Sm0.33Eu 0.33Gd0.33)Ba2Cu3Oy exhibiting self-organized nanostripes formed by nanoclusters of the light-rare-earth-rich phase, we find that at temperatures close to the transition temperature the currents flowing parallel to the nanostripes are clearly larger than in the perpendicular direction. Constructing a pinning force diagram from the jc(Ha)-data obtained, we find strong evidence for a dominating δTc-pinning when the currents are flowing parallel to the nanostripes.
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U2 - 10.1209/0295-5075/89/47002
DO - 10.1209/0295-5075/89/47002
M3 - Article
AN - SCOPUS:79051471197
VL - 89
JO - Lettere Al Nuovo Cimento
JF - Lettere Al Nuovo Cimento
SN - 0295-5075
IS - 4
M1 - 47002
ER -