Electrical resistivity of Sr14-xAxCu24O41 (A = Ca, La) single crystals: Localization of hole pairs in the ladder

K. Kudo; S. Ishikawa; T. Noji; T. Adachi; Y. Koike; K. Maki; S. Tsuji; K. Kumagai

doi:10.1016/S0921-4526(99)02309-1

Electrical resistivity of Sr_14-xA_xCu₂₄O₄₁ (A = Ca, La) single crystals: Localization of hole pairs in the ladder

K. Kudo, S. Ishikawa, T. Noji, T. Adachi, Y. Koike, K. Maki, S. Tsuji, K. Kumagai

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

9 Citations (Scopus)

Abstract

We have investigated the electrical resistivity ρ and the magnetic susceptibility of Sr_14-xA_xCu₂₄O₄₁ (A = Ca,La) single crystals. The Arrhenius plot of In ρ versus T^-1 exhibits a bend at a temperature T_ρ and gives two kinds of activation energy above and below T_ρ. The activation energy at low temperatures below T_ρ is in approximate agreement with the spin gap in the ladder. Accordingly, it appears that hole pairs are localized at T < T_ρ and that thermally activated single-holes contribute to the electrical conduction at T < T_ρ.

Original language	English
Pages (from-to)	651-652
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	284-288
Issue number	PART I
DOIs	https://doi.org/10.1016/S0921-4526(99)02309-1
Publication status	Published - 2000
Externally published	Yes

Keywords

Activation energy
Hole pairing
Ladder-type superconductor
Spin gap
Spin ladder systems

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/S0921-4526(99)02309-1

Cite this

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title = "Electrical resistivity of Sr14-xAxCu24O41 (A = Ca, La) single crystals: Localization of hole pairs in the ladder",

abstract = "We have investigated the electrical resistivity ρ and the magnetic susceptibility of Sr14-xAxCu24O41 (A = Ca,La) single crystals. The Arrhenius plot of In ρ versus T-1 exhibits a bend at a temperature Tρ and gives two kinds of activation energy above and below Tρ. The activation energy at low temperatures below Tρ is in approximate agreement with the spin gap in the ladder. Accordingly, it appears that hole pairs are localized at T < Tρ and that thermally activated single-holes contribute to the electrical conduction at T < Tρ.",

keywords = "Activation energy, Hole pairing, Ladder-type superconductor, Spin gap, Spin ladder systems",

author = "K. Kudo and S. Ishikawa and T. Noji and T. Adachi and Y. Koike and K. Maki and S. Tsuji and K. Kumagai",

note = "Funding Information: This work was supported by CREST of Japan Science and Technology Corporation.",

year = "2000",

doi = "10.1016/S0921-4526(99)02309-1",

language = "English",

volume = "284-288",

pages = "651--652",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "PART I",

}

TY - JOUR

T1 - Electrical resistivity of Sr14-xAxCu24O41 (A = Ca, La) single crystals

T2 - Localization of hole pairs in the ladder

AU - Kudo, K.

AU - Ishikawa, S.

AU - Noji, T.

AU - Adachi, T.

AU - Koike, Y.

AU - Maki, K.

AU - Tsuji, S.

AU - Kumagai, K.

N1 - Funding Information: This work was supported by CREST of Japan Science and Technology Corporation.

PY - 2000

Y1 - 2000

N2 - We have investigated the electrical resistivity ρ and the magnetic susceptibility of Sr14-xAxCu24O41 (A = Ca,La) single crystals. The Arrhenius plot of In ρ versus T-1 exhibits a bend at a temperature Tρ and gives two kinds of activation energy above and below Tρ. The activation energy at low temperatures below Tρ is in approximate agreement with the spin gap in the ladder. Accordingly, it appears that hole pairs are localized at T < Tρ and that thermally activated single-holes contribute to the electrical conduction at T < Tρ.

AB - We have investigated the electrical resistivity ρ and the magnetic susceptibility of Sr14-xAxCu24O41 (A = Ca,La) single crystals. The Arrhenius plot of In ρ versus T-1 exhibits a bend at a temperature Tρ and gives two kinds of activation energy above and below Tρ. The activation energy at low temperatures below Tρ is in approximate agreement with the spin gap in the ladder. Accordingly, it appears that hole pairs are localized at T < Tρ and that thermally activated single-holes contribute to the electrical conduction at T < Tρ.

KW - Activation energy

KW - Hole pairing

KW - Ladder-type superconductor

KW - Spin gap

KW - Spin ladder systems

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EP - 652

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

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