Observation of nanostripes and -clusters in (Nd, EuGd)Ba2Cu3Ox superconductors

M. R. Koblischka; M. Winter; P. Das; A. Koblischka-Veneva; M. Muralidhar; T. Wolf; N. Hari Babu; S. Turner; G. van Tendeloo; U. Hartmann

doi:10.1016/j.physc.2009.01.007

Observation of nanostripes and -clusters in (Nd, EuGd)Ba₂Cu₃O_x superconductors

M. R. Koblischka, M. Winter, P. Das, A. Koblischka-Veneva, M. Muralidhar, T. Wolf, N. Hari Babu, S. Turner, G. van Tendeloo, U. Hartmann

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Nanostripes are observed in melt-textured and single-crystalline samples of the ternary light rare earth (LRE)-compound (Nd_0.33Eu_0.33Gd_0.33)Ba₂Cu₃O_x (NEG) by means of atomic force microscopy, scanning tunnelling microscopy at ambient conditions, combined with transmission electron microscopy and electron backscatter diffraction. This enables the observation of several important features: The nanostripes are formed by chains of nanoclusters, representing the LRE/Ba substitution. The dimensions of the nanostripes are similar for both types of NEG samples. The periodicity of the nanostripes is found to range between 40 and 60 nm; the shape of the nanoclusters is elliptic with a major axis length between 300 and 500 nm and a minor axis length of about 30-150 nm. The stripes are filling effectively the space in between the twin boundaries. Concerning the flux pinning, the nanoclusters are the important pinning sites, not the nanostripes themselves.

Original language	English
Pages (from-to)	168-176
Number of pages	9
Journal	Physica C: Superconductivity and its applications
Volume	469
Issue number	4
DOIs	https://doi.org/10.1016/j.physc.2009.01.007
Publication status	Published - 2009 Feb 15
Externally published	Yes

Keywords

AFM
Composition modulation
High-T superconductors
Nanostripes
Oxides
STM

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.2009.01.007

Cite this

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title = "Observation of nanostripes and -clusters in (Nd, EuGd)Ba2Cu3Ox superconductors",

abstract = "Nanostripes are observed in melt-textured and single-crystalline samples of the ternary light rare earth (LRE)-compound (Nd0.33Eu0.33Gd0.33)Ba2Cu3Ox (NEG) by means of atomic force microscopy, scanning tunnelling microscopy at ambient conditions, combined with transmission electron microscopy and electron backscatter diffraction. This enables the observation of several important features: The nanostripes are formed by chains of nanoclusters, representing the LRE/Ba substitution. The dimensions of the nanostripes are similar for both types of NEG samples. The periodicity of the nanostripes is found to range between 40 and 60 nm; the shape of the nanoclusters is elliptic with a major axis length between 300 and 500 nm and a minor axis length of about 30-150 nm. The stripes are filling effectively the space in between the twin boundaries. Concerning the flux pinning, the nanoclusters are the important pinning sites, not the nanostripes themselves.",

keywords = "AFM, Composition modulation, High-T superconductors, Nanostripes, Oxides, STM",

author = "Koblischka, {M. R.} and M. Winter and P. Das and A. Koblischka-Veneva and M. Muralidhar and T. Wolf and {Hari Babu}, N. and S. Turner and {van Tendeloo}, G. and U. Hartmann",

note = "Funding Information: We acknowledge collaborations within the European Forum for Processors of Bulk Superconductors (EFFORT), which is funded by the Engineering and Physical Sciences Research Council (EPSRC) of the UK government. The work of M.M. was supported by a Grant-in-Aid for Science Research from the JSPS. The AFM/STM images were processed with software WSxM{\textcopyright}, free provided by Nanotec Electronica [36] . ",

year = "2009",

month = feb,

day = "15",

doi = "10.1016/j.physc.2009.01.007",

language = "English",

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pages = "168--176",

journal = "Physica C: Superconductivity and its Applications",

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T1 - Observation of nanostripes and -clusters in (Nd, EuGd)Ba2Cu3Ox superconductors

AU - Koblischka, M. R.

AU - Winter, M.

AU - Das, P.

AU - Koblischka-Veneva, A.

AU - Muralidhar, M.

AU - Wolf, T.

AU - Hari Babu, N.

AU - Turner, S.

AU - van Tendeloo, G.

AU - Hartmann, U.

N1 - Funding Information: We acknowledge collaborations within the European Forum for Processors of Bulk Superconductors (EFFORT), which is funded by the Engineering and Physical Sciences Research Council (EPSRC) of the UK government. The work of M.M. was supported by a Grant-in-Aid for Science Research from the JSPS. The AFM/STM images were processed with software WSxM©, free provided by Nanotec Electronica [36] .

PY - 2009/2/15

Y1 - 2009/2/15

N2 - Nanostripes are observed in melt-textured and single-crystalline samples of the ternary light rare earth (LRE)-compound (Nd0.33Eu0.33Gd0.33)Ba2Cu3Ox (NEG) by means of atomic force microscopy, scanning tunnelling microscopy at ambient conditions, combined with transmission electron microscopy and electron backscatter diffraction. This enables the observation of several important features: The nanostripes are formed by chains of nanoclusters, representing the LRE/Ba substitution. The dimensions of the nanostripes are similar for both types of NEG samples. The periodicity of the nanostripes is found to range between 40 and 60 nm; the shape of the nanoclusters is elliptic with a major axis length between 300 and 500 nm and a minor axis length of about 30-150 nm. The stripes are filling effectively the space in between the twin boundaries. Concerning the flux pinning, the nanoclusters are the important pinning sites, not the nanostripes themselves.

AB - Nanostripes are observed in melt-textured and single-crystalline samples of the ternary light rare earth (LRE)-compound (Nd0.33Eu0.33Gd0.33)Ba2Cu3Ox (NEG) by means of atomic force microscopy, scanning tunnelling microscopy at ambient conditions, combined with transmission electron microscopy and electron backscatter diffraction. This enables the observation of several important features: The nanostripes are formed by chains of nanoclusters, representing the LRE/Ba substitution. The dimensions of the nanostripes are similar for both types of NEG samples. The periodicity of the nanostripes is found to range between 40 and 60 nm; the shape of the nanoclusters is elliptic with a major axis length between 300 and 500 nm and a minor axis length of about 30-150 nm. The stripes are filling effectively the space in between the twin boundaries. Concerning the flux pinning, the nanoclusters are the important pinning sites, not the nanostripes themselves.

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KW - Oxides

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