Evidence of d-wave behavior in Pr1.85Ce0.15CuO3.97 aligned superconductors

H. C. Ku; Y. Y. Hsu; B. C. Chang; B. N. Lin; H. C. Chiang; T. J. Yang

doi:10.1016/S0921-4534(01)00773-0

Evidence of d-wave behavior in Pr_1.85Ce_0.15CuO_3.97 aligned superconductors

H. C. Ku^*, Y. Y. Hsu, B. C. Chang, B. N. Lin, H. C. Chiang, T. J. Yang

^*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

The c-axis and in-plane alignment of 23 K Pr_1.85Ce_0.15CuO_3.97 superconducting powder were achieved with powder/epoxy cylindrical holder perpendicular and parallel to the alignment field. The temperature dependencies of basal-plane penetration depth λ_ab(T) and c-axis Josephson penetration depth λ_c(T) were derived using zero-field-cooled diamagnetic susceptibility χ_d(T) in a low applied field (B_a < H_c1) parallel or perpendicular to the aligned powder where small Pr Curie-Weiss paramagnetic susceptibility χ_p(T) was subtracted. Up to 0.5T_c, Δλ_ab(T) = λ_ab(T) - λ_ab(0) as well as Josephson Δλ_c(T) can be well fitted with a d-wave-like power law c₂T² + c₄T⁴, where T²-term is dominated below 0.3T_c. The present result agrees with recent phase-sensitive experiment, which indicates d-wave nature for electron-doped R_1.85Ce_0.15CuO_4-δ (R = Pr, Nd) cuprates.

Original language	English
Pages (from-to)	285-288
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	364-365
DOIs	https://doi.org/10.1016/S0921-4534(01)00773-0
Publication status	Published - 2001 Nov
Externally published	Yes

Keywords

Electron-doped cuprate
High-T superconductor
d-wave symmetry

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/S0921-4534(01)00773-0

Cite this

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title = "Evidence of d-wave behavior in Pr1.85Ce0.15CuO3.97 aligned superconductors",

abstract = "The c-axis and in-plane alignment of 23 K Pr1.85Ce0.15CuO3.97 superconducting powder were achieved with powder/epoxy cylindrical holder perpendicular and parallel to the alignment field. The temperature dependencies of basal-plane penetration depth λab(T) and c-axis Josephson penetration depth λc(T) were derived using zero-field-cooled diamagnetic susceptibility χd(T) in a low applied field (Ba < Hc1) parallel or perpendicular to the aligned powder where small Pr Curie-Weiss paramagnetic susceptibility χp(T) was subtracted. Up to 0.5Tc, Δλab(T) = λab(T) - λab(0) as well as Josephson Δλc(T) can be well fitted with a d-wave-like power law c2T2 + c4T4, where T2-term is dominated below 0.3Tc. The present result agrees with recent phase-sensitive experiment, which indicates d-wave nature for electron-doped R1.85Ce0.15CuO4-δ (R = Pr, Nd) cuprates.",

keywords = "Electron-doped cuprate, High-T superconductor, d-wave symmetry",

author = "Ku, {H. C.} and Hsu, {Y. Y.} and Chang, {B. C.} and Lin, {B. N.} and Chiang, {H. C.} and Yang, {T. J.}",

year = "2001",

month = nov,

doi = "10.1016/S0921-4534(01)00773-0",

language = "English",

volume = "364-365",

pages = "285--288",

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

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TY - JOUR

T1 - Evidence of d-wave behavior in Pr1.85Ce0.15CuO3.97 aligned superconductors

AU - Ku, H. C.

AU - Hsu, Y. Y.

AU - Chang, B. C.

AU - Lin, B. N.

AU - Chiang, H. C.

AU - Yang, T. J.

PY - 2001/11

Y1 - 2001/11

N2 - The c-axis and in-plane alignment of 23 K Pr1.85Ce0.15CuO3.97 superconducting powder were achieved with powder/epoxy cylindrical holder perpendicular and parallel to the alignment field. The temperature dependencies of basal-plane penetration depth λab(T) and c-axis Josephson penetration depth λc(T) were derived using zero-field-cooled diamagnetic susceptibility χd(T) in a low applied field (Ba < Hc1) parallel or perpendicular to the aligned powder where small Pr Curie-Weiss paramagnetic susceptibility χp(T) was subtracted. Up to 0.5Tc, Δλab(T) = λab(T) - λab(0) as well as Josephson Δλc(T) can be well fitted with a d-wave-like power law c2T2 + c4T4, where T2-term is dominated below 0.3Tc. The present result agrees with recent phase-sensitive experiment, which indicates d-wave nature for electron-doped R1.85Ce0.15CuO4-δ (R = Pr, Nd) cuprates.

AB - The c-axis and in-plane alignment of 23 K Pr1.85Ce0.15CuO3.97 superconducting powder were achieved with powder/epoxy cylindrical holder perpendicular and parallel to the alignment field. The temperature dependencies of basal-plane penetration depth λab(T) and c-axis Josephson penetration depth λc(T) were derived using zero-field-cooled diamagnetic susceptibility χd(T) in a low applied field (Ba < Hc1) parallel or perpendicular to the aligned powder where small Pr Curie-Weiss paramagnetic susceptibility χp(T) was subtracted. Up to 0.5Tc, Δλab(T) = λab(T) - λab(0) as well as Josephson Δλc(T) can be well fitted with a d-wave-like power law c2T2 + c4T4, where T2-term is dominated below 0.3Tc. The present result agrees with recent phase-sensitive experiment, which indicates d-wave nature for electron-doped R1.85Ce0.15CuO4-δ (R = Pr, Nd) cuprates.

KW - Electron-doped cuprate

KW - High-T superconductor

KW - d-wave symmetry

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