Recent progress on compositional nanostripes of REBa2Cu3O7-δ (RE = Sm, Eu, Gd) superconductors

被引：6
作者：
Hu, A.
Koblischka, M. R.
Yao, X.
Zhou, H.
Winter, M.
Hartmann, U.
Murakami, M.
机构：
[1] Univ Waterloo, Dept Phys, Waterloo, ON N2L 3P7, Canada
[2] Univ Saarland, D-66041 Saarbrucken, Germany
[3] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200030, Peoples R China
[4] Queensland Univ Technol, Ctr Built Environm & Engn Res, Brisbane, Qld 400, Australia
[5] Shibaura Inst Technol, Minato Ku, Tokyo 1088548, Japan
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2006年 / 19卷 / 07期
关键词：
D O I：
10.1088/0953-2048/19/7/S31
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We characterized ordered compositional fluctuation in high-quality SmBa2Cu3O7-delta, (Sm0.5Eu0.5) Ba2Cu3O7-delta, and (Sm0.33Eu0.33Gd0.33) Ba2Cu3O7-delta superconductors by atomic force microscopy, scanning tunnelling microscopy, and transmission electron microscopy. The presence of nanostripes along the crystalline c direction was confirmed in SmBa2Cu3O7-delta single crystals and in melt-processed (Sm0.5Eu0.5) Ba2Cu3O7-delta, (Sm0.33Eu0.33Gd0.33) Ba2Cu3O7-delta materials. Meanwhile, thickness fringes originating from the twin boundaries were also identified in some samples; these could be clearly separated from real nanostripes with sample tilting. Compositional nanostripes displayed spatial variation in both shape and wavelength over a large area of RE - Ba - Cu - O single domains. The origin of the nanostripe is discussed in the context of the competitive growth mechanism of RE1+xBa2-xCu3O7-delta solid solution.
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收藏
页码：S580 / S584
页数：5
相关论文
共 24 条
[1]   VORTICES IN HIGH-TEMPERATURE SUPERCONDUCTORS [J].
BLATTER, G ;
FEIGELMAN, MV ;
GESHKENBEIN, VB ;
LARKIN, AI ;
VINOKUR, VM .
REVIEWS OF MODERN PHYSICS, 1994, 66 (04) :1125-1388
[2]   STABILITY OF THIN LAMELLAR EUTECTIC GROWTH [J].
DATYE, V ;
LANGER, JS .
PHYSICAL REVIEW B, 1981, 24 (08) :4155-4169
[3]   HIGH CRITICAL-CURRENT DENSITY OF ND(BA,ND)(2)CU3O7-DELTA SINGLE-CRYSTALS [J].
EGI, T ;
WEN, JG ;
KURODA, K ;
UNOKI, H ;
KOSHIZUKA, N .
APPLIED PHYSICS LETTERS, 1995, 67 (16) :2406-2408
[4]   Nanoscopic netted structure of compositional modulation in (Sm0.33Eu0.3sGd0.33)Ba2Cu3O7-δ superconductors -: art. no. 092505 [J].
Hu, A ;
Hirabayashi, I ;
Winter, M ;
Koblischka, MR ;
Hartmann, U ;
Zhou, H .
APPLIED PHYSICS LETTERS, 2005, 86 (09) :1-3
[5]   Nanostripes in SmBa2Cu3O7-δ single crystals:: Origin and peak effect [J].
Hu, A ;
Yao, X ;
Winter, M ;
Zhou, H ;
Sakai, N ;
Koblischka, MR ;
Murakami, M ;
Hirabayashi, I .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2005, 426 :441-445
[6]   Angular dependence of the peak effect and out-of-plane modulated compositional order in melt-processed (Sm, Eu, Gd)Ba2Cu3O7-δ superconductors [J].
Hu, A ;
Chikumoto, N ;
Zhou, F ;
Sakai, N ;
Murakami, M ;
Hirabayshi, I .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2005, 18 (02) :S131-S135
[7]   The development of melt-processed (Sm, Eu, Gd)Ba2Cu3O7-δ single-domain superconductors for high field applications [J].
Hu, A ;
Sakai, N ;
Murakami, M ;
Hirabayashi, I .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2005, 18 (02) :S52-S57
[8]   Hot-seeding melt growth of large (Sm-Eu)123 single domains in air with controlled chemical substitutions [J].
Hu, A ;
Sakai, N ;
Murakami, M .
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2003, 13 (02) :3079-3082
[9]   Single-grain growth, microstructure and superconducting properties of (Sm, Eu)123 superconductors with BaCuO2-x addition [J].
Hu, A ;
Sakai, N ;
Zhou, H ;
Matsui, M ;
Murakami, M .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2003, 16 (01) :33-38
[10]   Ordering oscillation of local composition in melt-processed REBa2Cu3O7-δ superconductors (RE: Sm, Eu, Gd) [J].
Hu, A ;
Murakami, M ;
Zhou, H .
APPLIED PHYSICS LETTERS, 2003, 83 (09) :1788-1790
123