TY - JOUR
T1 - Increased flux pinning in both pure and carbon-nanotube-embedded Bi-2212 superconductors
AU - Huang, Sun Li
AU - Koblischka, M. R.
AU - Fossheim, K.
AU - Ebbesen, T. W.
AU - Johansen, T. H.
N1 - Funding Information:
This work is financially Research Council of Norway.
PY - 1997/8
Y1 - 1997/8
N2 - In this work, we have prepared both Bi2Sr2CaCu2O8+δ samples (Bi-2212) and Bi2Sr2CaCu2O8+δ samples with carbon nanotubes embedded (CNTE Bi-2212) by partial-melting processing. AC susceptibilty measurements show that the Bi-2212 samples as well as the CNTE Bi-2212 samples have a sharp transition at 94K and -86K, respectively. The pinning properties of these samples are studied by means of magneto-optical visualization of flux distribution up to 77K. The results indicate that our Bi-2212 samples have obviously enhanced pinning capacity, and in our CNTE Bi-2212 samples, the pinning is even stronger and the fields of flux entry are doubled at intermediate temperatures compared to those of our Bi-2212 samples.
AB - In this work, we have prepared both Bi2Sr2CaCu2O8+δ samples (Bi-2212) and Bi2Sr2CaCu2O8+δ samples with carbon nanotubes embedded (CNTE Bi-2212) by partial-melting processing. AC susceptibilty measurements show that the Bi-2212 samples as well as the CNTE Bi-2212 samples have a sharp transition at 94K and -86K, respectively. The pinning properties of these samples are studied by means of magneto-optical visualization of flux distribution up to 77K. The results indicate that our Bi-2212 samples have obviously enhanced pinning capacity, and in our CNTE Bi-2212 samples, the pinning is even stronger and the fields of flux entry are doubled at intermediate temperatures compared to those of our Bi-2212 samples.
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U2 - 10.1016/S0921-4534(97)01231-8
DO - 10.1016/S0921-4534(97)01231-8
M3 - Article
AN - SCOPUS:3142674075
SN - 0921-4534
VL - 282
SP - 2279
EP - 2280
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - PART 4
ER -