Thermopower anisotropy of lightly-doped and optimally-doped Bi 2Sr2-xLaxCaCu2O 8+δ single crystals

T. Fujii; I. Terasaki; A. Matsuda

doi:10.1016/j.physc.2004.03.105

Thermopower anisotropy of lightly-doped and optimally-doped Bi ₂Sr_2-xLa_xCaCu₂O _8+δ single crystals

T. Fujii^*, I. Terasaki, A. Matsuda

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

In-plane and out-of-plane thermopowers have been measured for lightly-doped (insulating) and optimally-doped (superconducting) Bi₂Sr _2-xLa_xCaCu₂O_8+δ single crystals. The anisotropy of the thermopower S_c/S_ab is very large in the superconducting samples, while it is close to unity in the insulating ones. The thermopower of the insulating samples increases in proportion to T, suggesting that the localized carriers around at (π/2,π/2) cause the variable range hopping transport.

Original language	English
Pages (from-to)	674-676
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	408-410
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physc.2004.03.105
Publication status	Published - 2004 Aug
Externally published	Yes
Event	Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil Duration: 2003 May 25 → 2003 May 30

Keywords

Anisotropy
Bi-2212
La substitution
Out-of-plane thermopower
Parent insulator

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/j.physc.2004.03.105

Cite this

@article{f04ce778cab645878f4ee0a09740b1ed,

title = "Thermopower anisotropy of lightly-doped and optimally-doped Bi 2Sr2-xLaxCaCu2O 8+δ single crystals",

abstract = "In-plane and out-of-plane thermopowers have been measured for lightly-doped (insulating) and optimally-doped (superconducting) Bi2Sr 2-xLaxCaCu2O8+δ single crystals. The anisotropy of the thermopower Sc/Sab is very large in the superconducting samples, while it is close to unity in the insulating ones. The thermopower of the insulating samples increases in proportion to T, suggesting that the localized carriers around at (π/2,π/2) cause the variable range hopping transport.",

keywords = "Anisotropy, Bi-2212, La substitution, Out-of-plane thermopower, Parent insulator",

author = "T. Fujii and I. Terasaki and A. Matsuda",

year = "2004",

month = aug,

doi = "10.1016/j.physc.2004.03.105",

language = "English",

volume = "408-410",

pages = "674--676",

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

issn = "0921-4534",

publisher = "Elsevier",

number = "1-4",

note = "Proceedings of the International Conference on Materials ; Conference date: 25-05-2003 Through 30-05-2003",

}

TY - JOUR

T1 - Thermopower anisotropy of lightly-doped and optimally-doped Bi 2Sr2-xLaxCaCu2O 8+δ single crystals

AU - Fujii, T.

AU - Terasaki, I.

AU - Matsuda, A.

PY - 2004/8

Y1 - 2004/8

N2 - In-plane and out-of-plane thermopowers have been measured for lightly-doped (insulating) and optimally-doped (superconducting) Bi2Sr 2-xLaxCaCu2O8+δ single crystals. The anisotropy of the thermopower Sc/Sab is very large in the superconducting samples, while it is close to unity in the insulating ones. The thermopower of the insulating samples increases in proportion to T, suggesting that the localized carriers around at (π/2,π/2) cause the variable range hopping transport.

AB - In-plane and out-of-plane thermopowers have been measured for lightly-doped (insulating) and optimally-doped (superconducting) Bi2Sr 2-xLaxCaCu2O8+δ single crystals. The anisotropy of the thermopower Sc/Sab is very large in the superconducting samples, while it is close to unity in the insulating ones. The thermopower of the insulating samples increases in proportion to T, suggesting that the localized carriers around at (π/2,π/2) cause the variable range hopping transport.

KW - Anisotropy

KW - Bi-2212

KW - La substitution

KW - Out-of-plane thermopower

KW - Parent insulator

UR - http://www.scopus.com/inward/record.url?scp=4444238116&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4444238116&partnerID=8YFLogxK

U2 - 10.1016/j.physc.2004.03.105

DO - 10.1016/j.physc.2004.03.105

M3 - Conference article

AN - SCOPUS:4444238116

SN - 0921-4534

VL - 408-410

SP - 674

EP - 676

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - 1-4

T2 - Proceedings of the International Conference on Materials

Y2 - 25 May 2003 through 30 May 2003

ER -