Single-crystal growth and thermal conductivity of the four-leg spin-ladder system La2Cu2O5

Kazutaka Kudo; Takashi Noji; Yoji Koike; Terukazu Nishizaki; Norio Kobayashi

doi:10.1143/JPSJ.72.2551

Single-crystal growth and thermal conductivity of the four-leg spin-ladder system La₂Cu₂O₅

Kazutaka Kudo, Takashi Noji, Yoji Koike, Terukazu Nishizaki, Norio Kobayashi

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

4 Citations (Scopus)

Abstract

We have succeeded in growing large-size single-crystals of the four-leg spin-ladder system La₂Cu₂O₅ by the traveling-solvent floating-zone method, and also investigated the thermal conductivity. The thermal conductivity along the leg of the ladder, κ_b, has been found to be much larger than that perpendicular to the ladder plane, κ_a. The temperature dependence of κ_b exhibits a peak at 22 K and a shoulder at 12 K. The peak is a little enhanced by the application of a magnetic field of 1 4T. The large value of κ_b is explained as being due to the large contribution of magnons to the thermal conductivity.

Original language	English
Pages (from-to)	2551-2555
Number of pages	5
Journal	journal of the physical society of japan
Volume	72
Issue number	10
DOIs	https://doi.org/10.1143/JPSJ.72.2551
Publication status	Published - Oct 1 2003
Externally published	Yes

Keywords

Four-leg spin-ladder system
LaCuO
Single crystal
TSFZ
Thermal conductivity

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.72.2551

Cite this

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title = "Single-crystal growth and thermal conductivity of the four-leg spin-ladder system La2Cu2O5",

abstract = "We have succeeded in growing large-size single-crystals of the four-leg spin-ladder system La2Cu2O5 by the traveling-solvent floating-zone method, and also investigated the thermal conductivity. The thermal conductivity along the leg of the ladder, κb, has been found to be much larger than that perpendicular to the ladder plane, κa. The temperature dependence of κb exhibits a peak at 22 K and a shoulder at 12 K. The peak is a little enhanced by the application of a magnetic field of 1 4T. The large value of κb is explained as being due to the large contribution of magnons to the thermal conductivity.",

keywords = "Four-leg spin-ladder system, LaCuO, Single crystal, TSFZ, Thermal conductivity",

author = "Kazutaka Kudo and Takashi Noji and Yoji Koike and Terukazu Nishizaki and Norio Kobayashi",

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T1 - Single-crystal growth and thermal conductivity of the four-leg spin-ladder system La2Cu2O5

AU - Kudo, Kazutaka

AU - Noji, Takashi

AU - Koike, Yoji

AU - Nishizaki, Terukazu

AU - Kobayashi, Norio

PY - 2003/10/1

Y1 - 2003/10/1

N2 - We have succeeded in growing large-size single-crystals of the four-leg spin-ladder system La2Cu2O5 by the traveling-solvent floating-zone method, and also investigated the thermal conductivity. The thermal conductivity along the leg of the ladder, κb, has been found to be much larger than that perpendicular to the ladder plane, κa. The temperature dependence of κb exhibits a peak at 22 K and a shoulder at 12 K. The peak is a little enhanced by the application of a magnetic field of 1 4T. The large value of κb is explained as being due to the large contribution of magnons to the thermal conductivity.

AB - We have succeeded in growing large-size single-crystals of the four-leg spin-ladder system La2Cu2O5 by the traveling-solvent floating-zone method, and also investigated the thermal conductivity. The thermal conductivity along the leg of the ladder, κb, has been found to be much larger than that perpendicular to the ladder plane, κa. The temperature dependence of κb exhibits a peak at 22 K and a shoulder at 12 K. The peak is a little enhanced by the application of a magnetic field of 1 4T. The large value of κb is explained as being due to the large contribution of magnons to the thermal conductivity.

KW - Four-leg spin-ladder system

KW - LaCuO

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KW - TSFZ

KW - Thermal conductivity

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