Thermal conductivity of the four-leg spin-ladder system La2Cu2O5 single crystal

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

doi:10.1023/A:1022969101834

Thermal conductivity of the four-leg spin-ladder system La₂Cu₂O₅ single crystal

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

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

1 Citation (Scopus)

Abstract

We have investigated the magnetic susceptibility, X, and the thermal conductivity, K, in magnetic fields for the four-leg spin-ladder system La₂ Cu₂ O₅ single crystal. The X in a magnetic field parallel to the ladder exhibits a kink at 130 K in correspondence to the magnetic ordering. The K along the ladder exhibits a peak at 25 K and a shoulder at 14 K, which are probably related to the thermal conductivity due to magnons, K_magnon, and that due to phonons, K_phonon, respectively. The K perpendicular to the ladder, on the other hand, exhibits only one broad peak related to K_phonon. The observed large anisotropy of K has been explained based upon the anisotropy of K_magnon.

Original language	English
Pages (from-to)	725-729
Number of pages	5
Journal	Journal of Low Temperature Physics
Volume	131
Issue number	3-4
DOIs	https://doi.org/10.1023/A:1022969101834
Publication status	Published - May 2003
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Materials Science(all)
Condensed Matter Physics

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title = "Thermal conductivity of the four-leg spin-ladder system La2Cu2O5 single crystal",

abstract = "We have investigated the magnetic susceptibility, X, and the thermal conductivity, K, in magnetic fields for the four-leg spin-ladder system La2 Cu2 O5 single crystal. The X in a magnetic field parallel to the ladder exhibits a kink at 130 K in correspondence to the magnetic ordering. The K along the ladder exhibits a peak at 25 K and a shoulder at 14 K, which are probably related to the thermal conductivity due to magnons, Kmagnon, and that due to phonons, Kphonon, respectively. The K perpendicular to the ladder, on the other hand, exhibits only one broad peak related to Kphonon. The observed large anisotropy of K has been explained based upon the anisotropy of Kmagnon.",

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

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T1 - Thermal conductivity of the four-leg spin-ladder system La2Cu2O5 single crystal

AU - Kudo, Kazutaka

AU - Noji, Takashi

AU - Koike, Yoji

AU - Nishizaki, Terukazu

AU - Kobayashi, Norio

PY - 2003/5

Y1 - 2003/5

N2 - We have investigated the magnetic susceptibility, X, and the thermal conductivity, K, in magnetic fields for the four-leg spin-ladder system La2 Cu2 O5 single crystal. The X in a magnetic field parallel to the ladder exhibits a kink at 130 K in correspondence to the magnetic ordering. The K along the ladder exhibits a peak at 25 K and a shoulder at 14 K, which are probably related to the thermal conductivity due to magnons, Kmagnon, and that due to phonons, Kphonon, respectively. The K perpendicular to the ladder, on the other hand, exhibits only one broad peak related to Kphonon. The observed large anisotropy of K has been explained based upon the anisotropy of Kmagnon.

AB - We have investigated the magnetic susceptibility, X, and the thermal conductivity, K, in magnetic fields for the four-leg spin-ladder system La2 Cu2 O5 single crystal. The X in a magnetic field parallel to the ladder exhibits a kink at 130 K in correspondence to the magnetic ordering. The K along the ladder exhibits a peak at 25 K and a shoulder at 14 K, which are probably related to the thermal conductivity due to magnons, Kmagnon, and that due to phonons, Kphonon, respectively. The K perpendicular to the ladder, on the other hand, exhibits only one broad peak related to Kphonon. The observed large anisotropy of K has been explained based upon the anisotropy of Kmagnon.

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Thermal conductivity of the four-leg spin-ladder system La₂Cu₂O₅ single crystal

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