Excess Conductivity and Superconducting Fluctuation Analysis of Cr-Substituted Tl-1223 Type Phase (Tl1−xCrx)Ba2Ca2Cu3O9−δ (x = 0.4–0.8)

M. G. Ranjbar, Roslan Abd. Shukor

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The Tl-1223 type phase superconductor with starting compositions (Tl1−xCrx)Ba2Ca2Cu3O9−δ (x = 0.4–0.8) has been prepared by the solid-state reaction method. The Aslamazov–Larkin (AL) theory was used to investigate the dimension of fluctuation-induced conductivity λ. The coherence length (Formula presented.) Josephson coupling J, and anisotropy γ of the samples were calculated by using the Lawrence–Doniach (LD) theory. The highest Tc onset and Tc zero were observed in the x = 0.6 sample. All samples showed the Tl-1223 as the dominant phase. Cr substitution induced 2D to 3D conductivity transition, and the highest transition temperature, T2D-3D, was observed for x = 0.5. The LD model showed a decrease in the coherence length, (Formula presented.) and interlayer coupling for x = 0.6 and 0.7 samples These results showed that factors other than J and ξc(0) are more important in optimizing the superconducting transition temperature. Our results showed that excess conductivity occurs at a higher temperature for a higher- Tc superconductor.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalJournal of Superconductivity and Novel Magnetism
DOIs
Publication statusAccepted/In press - 13 May 2016

Fingerprint

Superconducting materials
Superconducting transition temperature
conductivity
Solid state reactions
Anisotropy
Substitution reactions
transition temperature
Chemical analysis
interlayers
substitutes
solid state
Temperature
anisotropy

Keywords

  • Electrical properties
  • Excess conductivity
  • Tl-1223 phase
  • X-ray diffraction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

@article{6fedd767d5ee4d2abf05c1146d4df674,
title = "Excess Conductivity and Superconducting Fluctuation Analysis of Cr-Substituted Tl-1223 Type Phase (Tl1−xCrx)Ba2Ca2Cu3O9−δ (x = 0.4–0.8)",
abstract = "The Tl-1223 type phase superconductor with starting compositions (Tl1−xCrx)Ba2Ca2Cu3O9−δ (x = 0.4–0.8) has been prepared by the solid-state reaction method. The Aslamazov–Larkin (AL) theory was used to investigate the dimension of fluctuation-induced conductivity λ. The coherence length (Formula presented.) Josephson coupling J, and anisotropy γ of the samples were calculated by using the Lawrence–Doniach (LD) theory. The highest Tc onset and Tc zero were observed in the x = 0.6 sample. All samples showed the Tl-1223 as the dominant phase. Cr substitution induced 2D to 3D conductivity transition, and the highest transition temperature, T2D-3D, was observed for x = 0.5. The LD model showed a decrease in the coherence length, (Formula presented.) and interlayer coupling for x = 0.6 and 0.7 samples These results showed that factors other than J and ξc(0) are more important in optimizing the superconducting transition temperature. Our results showed that excess conductivity occurs at a higher temperature for a higher- Tc superconductor.",
keywords = "Electrical properties, Excess conductivity, Tl-1223 phase, X-ray diffraction",
author = "Ranjbar, {M. G.} and {Abd. Shukor}, Roslan",
year = "2016",
month = "5",
day = "13",
doi = "10.1007/s10948-016-3539-6",
language = "English",
pages = "1--6",
journal = "Journal of Superconductivity and Novel Magnetism",
issn = "1557-1939",
publisher = "Springer New York",

}

TY - JOUR

T1 - Excess Conductivity and Superconducting Fluctuation Analysis of Cr-Substituted Tl-1223 Type Phase (Tl1−xCrx)Ba2Ca2Cu3O9−δ (x = 0.4–0.8)

AU - Ranjbar, M. G.

AU - Abd. Shukor, Roslan

PY - 2016/5/13

Y1 - 2016/5/13

N2 - The Tl-1223 type phase superconductor with starting compositions (Tl1−xCrx)Ba2Ca2Cu3O9−δ (x = 0.4–0.8) has been prepared by the solid-state reaction method. The Aslamazov–Larkin (AL) theory was used to investigate the dimension of fluctuation-induced conductivity λ. The coherence length (Formula presented.) Josephson coupling J, and anisotropy γ of the samples were calculated by using the Lawrence–Doniach (LD) theory. The highest Tc onset and Tc zero were observed in the x = 0.6 sample. All samples showed the Tl-1223 as the dominant phase. Cr substitution induced 2D to 3D conductivity transition, and the highest transition temperature, T2D-3D, was observed for x = 0.5. The LD model showed a decrease in the coherence length, (Formula presented.) and interlayer coupling for x = 0.6 and 0.7 samples These results showed that factors other than J and ξc(0) are more important in optimizing the superconducting transition temperature. Our results showed that excess conductivity occurs at a higher temperature for a higher- Tc superconductor.

AB - The Tl-1223 type phase superconductor with starting compositions (Tl1−xCrx)Ba2Ca2Cu3O9−δ (x = 0.4–0.8) has been prepared by the solid-state reaction method. The Aslamazov–Larkin (AL) theory was used to investigate the dimension of fluctuation-induced conductivity λ. The coherence length (Formula presented.) Josephson coupling J, and anisotropy γ of the samples were calculated by using the Lawrence–Doniach (LD) theory. The highest Tc onset and Tc zero were observed in the x = 0.6 sample. All samples showed the Tl-1223 as the dominant phase. Cr substitution induced 2D to 3D conductivity transition, and the highest transition temperature, T2D-3D, was observed for x = 0.5. The LD model showed a decrease in the coherence length, (Formula presented.) and interlayer coupling for x = 0.6 and 0.7 samples These results showed that factors other than J and ξc(0) are more important in optimizing the superconducting transition temperature. Our results showed that excess conductivity occurs at a higher temperature for a higher- Tc superconductor.

KW - Electrical properties

KW - Excess conductivity

KW - Tl-1223 phase

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=84968680137&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84968680137&partnerID=8YFLogxK

U2 - 10.1007/s10948-016-3539-6

DO - 10.1007/s10948-016-3539-6

M3 - Article

AN - SCOPUS:84968680137

SP - 1

EP - 6

JO - Journal of Superconductivity and Novel Magnetism

JF - Journal of Superconductivity and Novel Magnetism

SN - 1557-1939

ER -