Variation of the transition temperature in strained epitaxial Y_(1-x)Pr_xBa_2Cu_3O_7 ultrathin layers

G. J. Lian; X. Wang; G. C. Xiong; J. Gao

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Variation of the transition temperature in strained epitaxial Y_(1-x)Pr_xBa_2Cu_3O_7 ultrathin layers

机译：应变外延Y_（1-x）Pr_xBa_2Cu_3O_7超薄层中转变温度的变化

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Ultrathin films of Y_(1-x)Pr_xBa_2Cu_3O_7 (x=0,0.2,0.3) were deposited on perovskite La_(1.95)Sr_(0.05)CuO_4, Pr_(1.95)Ce_(0.05)CuO_4, and P_xBa_2Cu_3O_7 buffer layers for comparing the effects of epitaxial strain on the superconducting transition temperature (T_c). The resulting changes in T_c demonstrated that in-plane compressive strains improved the superconductivity. The T_c was higher for Y_(1-x)Pr_xBa_2Cu_3O_7 films grown on Pr_xBa_2Cu_3O_7 than for films grown on Pr_(1.95)Ce_(0.05)CuO_4, which indicates that the variation of T_c in perovskite superconductors is also attributable to factors other than strain, such as interlayer coupling, interlayer strain, and interface roughness.

机译：将Y_（1-x）Pr_xBa_2Cu_3O_7（x = 0,0.2,0.3）的超薄膜沉积在钙钛矿La_（1.95）Sr_（0.05）CuO_4，Pr_（1.95）Ce_（0.05）CuO_4和P_xBa_2Cu_3O_7缓冲层上以进行比较外延应变对超导转变温度（T_c）的影响T_c的最终变化表明，面内压缩应变改善了超导性。在Pr_xBa_2Cu_3O_7上生长的Y_（1-x）Pr_xBa_2Cu_3O_7膜的T_c高于在Pr_（1.95）Ce_（0.05）CuO_4上生长的膜的T_c，这表明钙钛矿超导体中T_c的变化还归因于应变以外的其他因素，例如层间耦合，层间应变和界面粗糙度。

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来源
《Physical review. B, Condensed Matter And Materials Physics》 |2005年第2期|p.024503.1-024503.5|共5页
作者
G. J. Lian; X. Wang; G. C. Xiong; J. Gao;
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Department of Physics, Peking University, 100871 Beijing, People's Republic of China;

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原文格式 PDF
正文语种 eng
中图分类固体物理学;
关键词
multilayers; superlattices; heterostructures; other effects; electronic transport phenomena in thin films; high-Tc films;

机译：多层超晶格异质结构;其他效应;薄膜中的电子输运现象;高Tc薄膜;

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1. X-ray spectroscopic study of the electronic structure of Y_(1-x)Pr_xBa_2Cu_3O_7 [J] . H. Yamaoka, H. Oohashi, I. Jarrige, Physical review. B, Condensed Matter And Materials Physics . 2008,第4期

机译：Y_（1-x）Pr_xBa_2Cu_3O_7的电子结构的X射线光谱研究
2. Evidence for Vortices in the Pseudogap Region of Y_(1-x)Pr_xBa_2Cu_3O_7 from Angular Magnetoresistivity Measurements [J] . V. Sandu, E. Cimpoiasu, T. Katuwal, Physical review letters . 2004,第17期

机译：Y_（1-x）Pr_xBa_2Cu_3O_7的Pseeudogap区中涡旋的角磁阻测量结果
3. Cu(1) NQR in Y_(1-x)Pr_xBa_2Cu_3O_7 [J] . Takashi Ohno, Hironori Nishihara, Kuniyuki Koyama, Zeitschrift fur Naturforschung. A, A journal of physical sciences . 1996,第5a6期

机译：Y_（1-x）Pr_xBa_2Cu_3O_7中的Cu（1）NQR
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Variation of the transition temperature in strained epitaxial Y_(1-x)Pr_xBa_2Cu_3O_7 ultrathin layers

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