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

Michael Rudolf Koblischka, M. Winter, P. Das, Anjela Dimitrova Koblischka-Veneva, Muralidhar Miryala, T. Wolf, N. Hari Babu, S. Turner, G. van Tendeloo, U. Hartmann

Research output: Contribution to journalArticle

6 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)168-176
Number of pages9
JournalPhysica C: Superconductivity and its Applications
Volume469
Issue number4
DOIs
Publication statusPublished - 2009 Feb 15
Externally publishedYes

Fingerprint

Nanoclusters
nanoclusters
Superconducting materials
Rare earth compounds
Flux pinning
rare earth compounds
flux pinning
Scanning tunneling microscopy
Electron diffraction
Rare earths
scanning tunneling microscopy
periodic variations
Atomic force microscopy
Substitution reactions
rare earth elements
atomic force microscopy
substitutes
Crystalline materials
Transmission electron microscopy
transmission electron microscopy

Keywords

  • AFM
  • Composition modulation
  • High-T superconductors
  • Nanostripes
  • Oxides
  • STM

ASJC Scopus subject areas

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

Cite this

Observation of nanostripes and -clusters in (Nd, EuGd)Ba2Cu3Ox superconductors. / Koblischka, Michael Rudolf; Winter, M.; Das, P.; Koblischka-Veneva, Anjela Dimitrova; Miryala, Muralidhar; Wolf, T.; Hari Babu, N.; Turner, S.; van Tendeloo, G.; Hartmann, U.

In: Physica C: Superconductivity and its Applications, Vol. 469, No. 4, 15.02.2009, p. 168-176.

Research output: Contribution to journalArticle

Koblischka, Michael Rudolf ; Winter, M. ; Das, P. ; Koblischka-Veneva, Anjela Dimitrova ; Miryala, Muralidhar ; Wolf, T. ; Hari Babu, N. ; Turner, S. ; van Tendeloo, G. ; Hartmann, U. / Observation of nanostripes and -clusters in (Nd, EuGd)Ba2Cu3Ox superconductors. In: Physica C: Superconductivity and its Applications. 2009 ; Vol. 469, No. 4. pp. 168-176.
@article{f0a5dc3964c04025861d9009f7890612,
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, {Michael Rudolf} and M. Winter and P. Das and Koblischka-Veneva, {Anjela Dimitrova} and Muralidhar Miryala and T. Wolf and {Hari Babu}, N. and S. Turner and {van Tendeloo}, G. and U. Hartmann",
year = "2009",
month = "2",
day = "15",
doi = "10.1016/j.physc.2009.01.007",
language = "English",
volume = "469",
pages = "168--176",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "4",

}

TY - JOUR

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

AU - Koblischka, Michael Rudolf

AU - Winter, M.

AU - Das, P.

AU - Koblischka-Veneva, Anjela Dimitrova

AU - Miryala, Muralidhar

AU - Wolf, T.

AU - Hari Babu, N.

AU - Turner, S.

AU - van Tendeloo, G.

AU - Hartmann, U.

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.

KW - AFM

KW - Composition modulation

KW - High-T superconductors

KW - Nanostripes

KW - Oxides

KW - STM

UR - http://www.scopus.com/inward/record.url?scp=61349136430&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=61349136430&partnerID=8YFLogxK

U2 - 10.1016/j.physc.2009.01.007

DO - 10.1016/j.physc.2009.01.007

M3 - Article

VL - 469

SP - 168

EP - 176

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - 4

ER -