TY - JOUR
T1 - The relationship between nano-scale Sm211/Sm123 interfaces and superconductivity of Sm-Ba-Cu-O materials
AU - Chen, Shih Yun
AU - Chen, In Gann
AU - Liu, Chuan Pu
AU - Hsieh, Ping Chi
AU - Wu, Mow Kuen
N1 - Funding Information:
Manuscript received August 6, 2002. This work was supported by the National Science Council, Republic of China, under Contract NSC-90-2112-M-006-024. S.-Y. Chen, I.-G. Chen, C.-P. Liu, and P.-C. Hsieh are with the Department of Materials Science and Engineering, National Cheng Kung University, Tainan, Taiwan, R.O.C. (e-mail: [email protected]). M.-K. Wu is with the Institute of Physics, Academia Sinica, Taipei, Taiwan. Digital Object Identifier 10.1109/TASC.2003.812135
PY - 2003/7/1
Y1 - 2003/7/1
N2 - The distribution of dislocations at the interface between the Sm2BaCuO5 particles (Sm211 -particles) and SmBa2Cu3O7 (Sm123) matrix with different 211-particle size from μm to nm was measured. It is found that the density of dislocations varies with the different curvatures of the 211-particles. There is a higher density of dislocations around small-sized 211-particles, especially those with sharp corners, which act as pinning centers and thus enhance the JC(H, T) values of the superconductors. A phenomenological model has been proposed to describe the relationship between the curvature of 211-particles, the dislocation density around 211/123 interface, as well as the JC(H, T).
AB - The distribution of dislocations at the interface between the Sm2BaCuO5 particles (Sm211 -particles) and SmBa2Cu3O7 (Sm123) matrix with different 211-particle size from μm to nm was measured. It is found that the density of dislocations varies with the different curvatures of the 211-particles. There is a higher density of dislocations around small-sized 211-particles, especially those with sharp corners, which act as pinning centers and thus enhance the JC(H, T) values of the superconductors. A phenomenological model has been proposed to describe the relationship between the curvature of 211-particles, the dislocation density around 211/123 interface, as well as the JC(H, T).
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U2 - 10.1109/TASC.2003.812135
DO - 10.1109/TASC.2003.812135
M3 - Conference article
AN - SCOPUS:0041965915
SN - 1051-8223
VL - 13
SP - 3180
EP - 3183
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 2
T2 - 2002 Applied Superconductivity Conference
Y2 - 4 August 2002 through 9 August 2002
ER -