Nanosized Pinning Sites in HTSC Compounds

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Due to the small coherence lengths of the high-7,; compounds, effective pinning sites are defects or particles of nanometer size according to Ç3. Integral magnetic measurements of the magnetization as a function of temperature in large applied magnetic fields (up to 7 T) have revealed that practically all high-T-4 compounds are spatially inhomogeneous, which can be caused by oxygen deficiency ( YBCO), solid solutions of Nd/Ba (NdBCO and light rare earth 123-type compounds), intergrowths (Bi-based superconductors), and doping by pair-breaking dopants like Zn, Pr, etc. Various irradiation experiments by neutrons, protons, and heavy-ions have enabled the artificial introduction of effective pinning sites into the high- Tc samples, thus creating many different observations in the magnetic data. From all these observations, we construct a pinning diagram explaining many features observed in high-T-4 samples.

Original languageEnglish
Pages (from-to)373-377
Number of pages5
JournalJournal of Superconductivity and Novel Magnetism
Volume17
Issue number3
Publication statusPublished - 2004
Externally publishedYes

Fingerprint

high temperature superconductors
Doping (additives)
Heavy Ions
Magnetic variables measurement
Heavy ions
Rare earths
Superconducting materials
Protons
Solid solutions
Magnetization
Neutrons
hypoxia
Irradiation
Magnetic fields
Oxygen
Defects
magnetic measurement
heavy ions
solid solutions
rare earth elements

Keywords

  • Critical current densities
  • Flux pinning
  • Nanoengineering
  • Peak effect
  • Spatial variations

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)

Cite this

@article{e8cd80ccab344783a33c2505a1ea2657,
title = "Nanosized Pinning Sites in HTSC Compounds",
abstract = "Due to the small coherence lengths of the high-7,; compounds, effective pinning sites are defects or particles of nanometer size according to {\cC}3. Integral magnetic measurements of the magnetization as a function of temperature in large applied magnetic fields (up to 7 T) have revealed that practically all high-T-4 compounds are spatially inhomogeneous, which can be caused by oxygen deficiency ( YBCO), solid solutions of Nd/Ba (NdBCO and light rare earth 123-type compounds), intergrowths (Bi-based superconductors), and doping by pair-breaking dopants like Zn, Pr, etc. Various irradiation experiments by neutrons, protons, and heavy-ions have enabled the artificial introduction of effective pinning sites into the high- Tc samples, thus creating many different observations in the magnetic data. From all these observations, we construct a pinning diagram explaining many features observed in high-T-4 samples.",
keywords = "Critical current densities, Flux pinning, Nanoengineering, Peak effect, Spatial variations",
author = "Koblischka, {Michael Rudolf} and Koblischka-Veneva, {Anjela Dimitrova} and Masato Murakami",
year = "2004",
language = "English",
volume = "17",
pages = "373--377",
journal = "Journal of Superconductivity and Novel Magnetism",
issn = "1557-1939",
publisher = "Springer New York",
number = "3",

}

TY - JOUR

T1 - Nanosized Pinning Sites in HTSC Compounds

AU - Koblischka, Michael Rudolf

AU - Koblischka-Veneva, Anjela Dimitrova

AU - Murakami, Masato

PY - 2004

Y1 - 2004

N2 - Due to the small coherence lengths of the high-7,; compounds, effective pinning sites are defects or particles of nanometer size according to Ç3. Integral magnetic measurements of the magnetization as a function of temperature in large applied magnetic fields (up to 7 T) have revealed that practically all high-T-4 compounds are spatially inhomogeneous, which can be caused by oxygen deficiency ( YBCO), solid solutions of Nd/Ba (NdBCO and light rare earth 123-type compounds), intergrowths (Bi-based superconductors), and doping by pair-breaking dopants like Zn, Pr, etc. Various irradiation experiments by neutrons, protons, and heavy-ions have enabled the artificial introduction of effective pinning sites into the high- Tc samples, thus creating many different observations in the magnetic data. From all these observations, we construct a pinning diagram explaining many features observed in high-T-4 samples.

AB - Due to the small coherence lengths of the high-7,; compounds, effective pinning sites are defects or particles of nanometer size according to Ç3. Integral magnetic measurements of the magnetization as a function of temperature in large applied magnetic fields (up to 7 T) have revealed that practically all high-T-4 compounds are spatially inhomogeneous, which can be caused by oxygen deficiency ( YBCO), solid solutions of Nd/Ba (NdBCO and light rare earth 123-type compounds), intergrowths (Bi-based superconductors), and doping by pair-breaking dopants like Zn, Pr, etc. Various irradiation experiments by neutrons, protons, and heavy-ions have enabled the artificial introduction of effective pinning sites into the high- Tc samples, thus creating many different observations in the magnetic data. From all these observations, we construct a pinning diagram explaining many features observed in high-T-4 samples.

KW - Critical current densities

KW - Flux pinning

KW - Nanoengineering

KW - Peak effect

KW - Spatial variations

UR - http://www.scopus.com/inward/record.url?scp=3142741594&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3142741594&partnerID=8YFLogxK

M3 - Article

VL - 17

SP - 373

EP - 377

JO - Journal of Superconductivity and Novel Magnetism

JF - Journal of Superconductivity and Novel Magnetism

SN - 1557-1939

IS - 3

ER -