Transport properties in Ca and Zn substituted NdBa2Cu 3O7-δ single crystals

M. Tamaki; T. Machi; I. Kato; N. Koshizuka; M. Murakami; S. Arai

doi:10.1016/S0921-4534(03)01106-7

Transport properties in Ca and Zn substituted NdBa₂Cu ₃O_7-δ single crystals

M. Tamaki, T. Machi, I. Kato, N. Koshizuka, M. Murakami, S. Arai

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

We have measured the transport properties in Ca and Zn substituted NdBa₂Cu₃O_7-δ (Nd123) single crystals grown by the travelling solvent floating zone (TSFZ) method. The normal state resistivity decreased with Ca doping and the electronic state changed into an over-doped state, which was revealed by the fact that the temperature dependence of resistivity turned into super-linear from the T-linear behavior. In contrast, a normal state resistivity increased with Zn doping presumably due to the fact that Zn acted as a scattering center. It was found that a combined addition of Ca and Zn was effective in increasing the irreversibility field and the critical current density simultaneously through the optimization of carrier concentration and pinning performance.

Original language	English
Pages (from-to)	157-160
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	392-396
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(03)01106-7
Publication status	Published - 2003 Oct
Externally published	Yes
Event	Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan Duration: 2002 Nov 11 → 2002 Nov 13

Keywords

Ca substitution
NdBaCuO single crystals
Transport properties
Zn substitution

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(03)01106-7

Cite this

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title = "Transport properties in Ca and Zn substituted NdBa2Cu 3O7-δ single crystals",

abstract = "We have measured the transport properties in Ca and Zn substituted NdBa2Cu3O7-δ (Nd123) single crystals grown by the travelling solvent floating zone (TSFZ) method. The normal state resistivity decreased with Ca doping and the electronic state changed into an over-doped state, which was revealed by the fact that the temperature dependence of resistivity turned into super-linear from the T-linear behavior. In contrast, a normal state resistivity increased with Zn doping presumably due to the fact that Zn acted as a scattering center. It was found that a combined addition of Ca and Zn was effective in increasing the irreversibility field and the critical current density simultaneously through the optimization of carrier concentration and pinning performance.",

keywords = "Ca substitution, NdBaCuO single crystals, Transport properties, Zn substitution",

author = "M. Tamaki and T. Machi and I. Kato and N. Koshizuka and M. Murakami and S. Arai",

note = "Funding Information: This work was supported by New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.; Proceedings of the 15th International Symposium on Superconduc ; Conference date: 11-11-2002 Through 13-11-2002",

year = "2003",

month = oct,

doi = "10.1016/S0921-4534(03)01106-7",

language = "English",

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pages = "157--160",

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

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TY - JOUR

T1 - Transport properties in Ca and Zn substituted NdBa2Cu 3O7-δ single crystals

AU - Tamaki, M.

AU - Machi, T.

AU - Kato, I.

AU - Koshizuka, N.

AU - Murakami, M.

AU - Arai, S.

N1 - Funding Information: This work was supported by New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2003/10

Y1 - 2003/10

N2 - We have measured the transport properties in Ca and Zn substituted NdBa2Cu3O7-δ (Nd123) single crystals grown by the travelling solvent floating zone (TSFZ) method. The normal state resistivity decreased with Ca doping and the electronic state changed into an over-doped state, which was revealed by the fact that the temperature dependence of resistivity turned into super-linear from the T-linear behavior. In contrast, a normal state resistivity increased with Zn doping presumably due to the fact that Zn acted as a scattering center. It was found that a combined addition of Ca and Zn was effective in increasing the irreversibility field and the critical current density simultaneously through the optimization of carrier concentration and pinning performance.

AB - We have measured the transport properties in Ca and Zn substituted NdBa2Cu3O7-δ (Nd123) single crystals grown by the travelling solvent floating zone (TSFZ) method. The normal state resistivity decreased with Ca doping and the electronic state changed into an over-doped state, which was revealed by the fact that the temperature dependence of resistivity turned into super-linear from the T-linear behavior. In contrast, a normal state resistivity increased with Zn doping presumably due to the fact that Zn acted as a scattering center. It was found that a combined addition of Ca and Zn was effective in increasing the irreversibility field and the critical current density simultaneously through the optimization of carrier concentration and pinning performance.

KW - Ca substitution

KW - NdBaCuO single crystals

KW - Transport properties

KW - Zn substitution

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DO - 10.1016/S0921-4534(03)01106-7

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SN - 0921-4534

VL - 392-396

SP - 157

EP - 160

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - PART 1

T2 - Proceedings of the 15th International Symposium on Superconduc

Y2 - 11 November 2002 through 13 November 2002

ER -