Growth-Temperature-Independent Nanostructure in (Y$_{1-x}$Er$_{x}$)Ba$_{2}$Cu$_{3}$O$_{y}$ Films with Ba–Nb–O Nanorods

Autor:	Natsuto Fujita, Toshihiko Maeda, Yuta Ogura, Masakazu Haruta, Takahiro Nakata, Shigeru Horii, Ataru Ichinose
Rok vydání:	2012
Předmět:	Matrix (chemical analysis) Superconductivity Materials science Nanostructure Morphology (linguistics) Chemical engineering Doping General Engineering Temperature independent General Physics and Astronomy Nanotechnology Nanorod Electrical conductor
Zdroj:	Applied Physics Express. 5:073102
ISSN:	1882-0786 1882-0778
DOI:	10.1143/apex.5.073102
Popis:	Uniform irreversibility lines (ILs) and the morphology of nanorods independent of the growth temperature (Ts) were demonstrated by controlling the chemical compositions in superconducting REBa2Cu3Oy (RE123) matrix. Tailoring the composition ratios of Y and Er in an RE123 matrix using Ba–Nb–O-doped Y123 and Er123 films with opposite Ts-dependent ILs, almost constant ILs with a matching field of ~4 T, and linear growth of nanorods were achieved in a wide Ts region of 40 °C (Ts=850–890 °C). The present study provides a novel strategy for the doping of nanorods in RE123-coated conductors with spatially uniform and high in-field critical current properties.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4c0cccc493a6b6769a2a0b31ff7a2717 https://doi.org/10.1143/apex.5.073102 Zobrazit plný text záznamu