主题：【已应助】求助英文文献5篇，谢谢。

【序号】：1
【作者】：Aylin Y,Kemal K

【题名】：Flux pinning and magnetic relaxation in melt-processed YBa2Cu3O7−δdoped with Li

【刊名】：J. Appl. Phys.

【年、卷、期、起止页码】：65, 224508 (2004)
【全文链接】：http://jap.aip.org/resource/1/japiau/v96/i6/p3371_s1?isAuthorized=no

【序号】：2
【作者】：ZhenpingChen，RenzhongXue, Tao Li, Haiyang Dai, Zhixia Zhang

【题名】：Vortex pinning in bulk-processed Y–Ba–Cu–O with ZrO2 nano-particles:Optimum pinning center size

【刊名】：Physica C:Superconductivity

【年、卷、期、起止页码】：390, 143 (2011)
【全文链接】：http://www.sciencedirect.com/science/article/pii/S0921453410007380

【序号】：3
【作者】：Frank N.Werfel，UtaFloegel-Delor, Thomas Riedel, Bernd Goebel, Rolf Rothfeld

【题名】：Pinning performance of (Nd,Eu,Gd)-123 superconductors: Comparison ofmelt-textured pellet and single crystal

【刊名】：MaterialsScience and Engineering: B
【年、卷、期、起止页码】：2005 11 1345
【全文链接】：http://www.sciencedirect.com/science/article/pii/S092151070800113X

【序号】：4
【作者】：R.Parthasarathy, N. Devendra Kumar, and V. Seshu Bai

【题名】：Effect of doping on the superconductive properties of GdBa2Cu3O7−δ single-domainsuperconductors fabricated in air

【刊名】：Journal ofAlloys and Compounds
【年、卷、期、起止页码】：20107 672
【全文链接】：http://www.sciencedirect.com/science/article/pii/S0925838809021203

【序号】：5
【作者】：Izumi,M. ;  Miki, M. ;  Felder,B. ;  Tsuzuki, K. ;  Hara, S. ; Uetake,T.

【题名】：PINNING-FORCE SCALING AND ITS LIMITATION IN INTERMEDIATE AND HIGHTEMPERATURE SUPERCONDUCTORS

【刊名】：ModernPhysics Letters B

【年、卷、期、起止页码】：2012,25, pp 1163-1170
【全文链接】：http://www.worldscientific.com/doi/abs/10.1142/S0217984912300074

谢谢。