Nanostripes in SmBa2Cu3O7-δ single crystals: Origin and peak effect

A. Hu; X. Yao; M. Winter; H. Zhou; N. Sakai; M. R. Koblischka; M. Murakami; I. Hirabayashi

doi:10.1016/j.physc.2005.02.055

Nanostripes in SmBa₂Cu₃O_7-δ single crystals: Origin and peak effect

A. Hu, X. Yao, M. Winter, H. Zhou, N. Sakai, M. R. Koblischka, M. Murakami, I. Hirabayashi

Research output: Contribution to journal › Conference article › peer-review

7 Citations (Scopus)

Abstract

Nanoscopic surface stripes were observed in high quality SmBa ₂Cu₃O_7-δ single crystals grown by a top-seeded pulling growth and their roles on the peak effect and enhanced flux pinning were investigated with a SQUID magnetometer. The crystal surface exhibited an ordered modulation with a roughness of 1-2 nm and a wavelength of about 50 nm. The study evidenced that such a periodic array is not dependent on surface processing. The analysis further unveiled that nanoscaled stripes may act as a kind of δT_c-style pinning defects which contribute to an enhanced peak effect.

Original language	English
Pages (from-to)	441-445
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	426-431
Issue number	I
DOIs	https://doi.org/10.1016/j.physc.2005.02.055
Publication status	Published - 2005 Oct 1
Event	Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity - Duration: 2004 Nov 23 → 2004 Nov 25

Keywords

Flux pinning
Nanoscaled defects
Peak effect
Surface stripes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2005.02.055

Cite this

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title = "Nanostripes in SmBa2Cu3O7-δ single crystals: Origin and peak effect",

abstract = "Nanoscopic surface stripes were observed in high quality SmBa 2Cu3O7-δ single crystals grown by a top-seeded pulling growth and their roles on the peak effect and enhanced flux pinning were investigated with a SQUID magnetometer. The crystal surface exhibited an ordered modulation with a roughness of 1-2 nm and a wavelength of about 50 nm. The study evidenced that such a periodic array is not dependent on surface processing. The analysis further unveiled that nanoscaled stripes may act as a kind of δTc-style pinning defects which contribute to an enhanced peak effect.",

keywords = "Flux pinning, Nanoscaled defects, Peak effect, Surface stripes",

author = "A. Hu and X. Yao and M. Winter and H. Zhou and N. Sakai and Koblischka, {M. R.} and M. Murakami and I. Hirabayashi",

note = "Funding Information: This work was partially supported by Japanese Society for the Promotion of Science (JSPS) and New Energy Development Organization (NEDO). X. Yao would like to thank NSFC (No. 50272038), 863 project program (No. 2002AA306261) and Education Ministry of China (grants No. 20030248010 and K0293003) for financial support.; Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity ; Conference date: 23-11-2004 Through 25-11-2004",

year = "2005",

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doi = "10.1016/j.physc.2005.02.055",

language = "English",

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pages = "441--445",

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TY - JOUR

T1 - Nanostripes in SmBa2Cu3O7-δ single crystals

T2 - Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity

AU - Hu, A.

AU - Yao, X.

AU - Winter, M.

AU - Zhou, H.

AU - Sakai, N.

AU - Koblischka, M. R.

AU - Murakami, M.

AU - Hirabayashi, I.

N1 - Funding Information: This work was partially supported by Japanese Society for the Promotion of Science (JSPS) and New Energy Development Organization (NEDO). X. Yao would like to thank NSFC (No. 50272038), 863 project program (No. 2002AA306261) and Education Ministry of China (grants No. 20030248010 and K0293003) for financial support.

PY - 2005/10/1

Y1 - 2005/10/1

N2 - Nanoscopic surface stripes were observed in high quality SmBa 2Cu3O7-δ single crystals grown by a top-seeded pulling growth and their roles on the peak effect and enhanced flux pinning were investigated with a SQUID magnetometer. The crystal surface exhibited an ordered modulation with a roughness of 1-2 nm and a wavelength of about 50 nm. The study evidenced that such a periodic array is not dependent on surface processing. The analysis further unveiled that nanoscaled stripes may act as a kind of δTc-style pinning defects which contribute to an enhanced peak effect.

AB - Nanoscopic surface stripes were observed in high quality SmBa 2Cu3O7-δ single crystals grown by a top-seeded pulling growth and their roles on the peak effect and enhanced flux pinning were investigated with a SQUID magnetometer. The crystal surface exhibited an ordered modulation with a roughness of 1-2 nm and a wavelength of about 50 nm. The study evidenced that such a periodic array is not dependent on surface processing. The analysis further unveiled that nanoscaled stripes may act as a kind of δTc-style pinning defects which contribute to an enhanced peak effect.

KW - Flux pinning

KW - Nanoscaled defects

KW - Peak effect

KW - Surface stripes

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