Optical probing of anisotropic heat transport in the quantum spin ladder Ca9La5Cu24O41

M. Otter; G. Athanasopoulos; N. Hlubek; M. Montagnese; M. Labois; D. A. Fishman; F. de Haan; S. Singh; D. Lakehal; J. Giapintzakis; C. Hess; A. Revcolevschi; P. H. M. van Loosdrecht

doi:10.1016/j.ijheatmasstransfer.2012.01.007

Optical probing of anisotropic heat transport in the quantum spin ladder Ca9La5Cu24O41

M. Otter, G. Athanasopoulos, N. Hlubek, M. Montagnese, M. Labois, D. A. Fishman, F. de Haan, S. Singh, D. Lakehal, J. Giapintzakis, C. Hess, A. Revcolevschi, P. H. M. van Loosdrecht^*

^*Corresponding author for this work

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Abstract

A transient thermal imaging technique is used to monitor heat diffusion at the surface of the antiferromagnetic spin ladder material Ca9La5Cu24O41. This material shows highly anisotropic thermal conductivity due to a large uni-directional magnetic heat transport along the ladders. The thermal conductivity is measured using optical heating as well as electrical heating, yielding 37 +/- 3W m(-1) K-1 for the fast (ladder) direction and 2.5 +/- 0.5W m K-1 for the slow direction, respectively. The fast direction result is in agreement with the thermal conductivity measured using other dynamic methods, but about 60% lower than the thermal conductivity measured using steady state methods. (C) 2012 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	2531-2538
Number of pages	8
Journal	International Journal of Heat and Mass Transfer
Volume	55
Issue number	9-10
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2012.01.007
Publication status	Published - Apr-2012

Keywords

Magnetic excitations
Quantum spin systems
Spin ladder
Anisotropic heat diffusion
Thermal imaging
THERMAL-CONDUCTIVITY
SR14CU24O41
INTERPLAY
FLUORESCENCE
MANAGEMENT
RESOLUTION
MAGNETISM
SR2CUO3
SRCUO2

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Otter, M., Athanasopoulos, G., Hlubek, N., Montagnese, M., Labois, M., Fishman, D. A., de Haan, F., Singh, S., Lakehal, D., Giapintzakis, J., Hess, C., Revcolevschi, A., & van Loosdrecht, P. H. M. (2012). Optical probing of anisotropic heat transport in the quantum spin ladder Ca9La5Cu24O41. International Journal of Heat and Mass Transfer, 55(9-10), 2531-2538. https://doi.org/10.1016/j.ijheatmasstransfer.2012.01.007

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title = "Optical probing of anisotropic heat transport in the quantum spin ladder Ca9La5Cu24O41",

abstract = "A transient thermal imaging technique is used to monitor heat diffusion at the surface of the antiferromagnetic spin ladder material Ca9La5Cu24O41. This material shows highly anisotropic thermal conductivity due to a large uni-directional magnetic heat transport along the ladders. The thermal conductivity is measured using optical heating as well as electrical heating, yielding 37 +/- 3W m(-1) K-1 for the fast (ladder) direction and 2.5 +/- 0.5W m K-1 for the slow direction, respectively. The fast direction result is in agreement with the thermal conductivity measured using other dynamic methods, but about 60% lower than the thermal conductivity measured using steady state methods. (C) 2012 Elsevier Ltd. All rights reserved.",

keywords = "Magnetic excitations, Quantum spin systems, Spin ladder, Anisotropic heat diffusion, Thermal imaging, THERMAL-CONDUCTIVITY, SR14CU24O41, INTERPLAY, FLUORESCENCE, MANAGEMENT, RESOLUTION, MAGNETISM, SR2CUO3, SRCUO2",

author = "M. Otter and G. Athanasopoulos and N. Hlubek and M. Montagnese and M. Labois and Fishman, {D. A.} and {de Haan}, F. and S. Singh and D. Lakehal and J. Giapintzakis and C. Hess and A. Revcolevschi and {van Loosdrecht}, {P. H. M.}",

year = "2012",

month = apr,

doi = "10.1016/j.ijheatmasstransfer.2012.01.007",

language = "English",

volume = "55",

pages = "2531--2538",

journal = "International Journal of Heat and Mass Transfer",

issn = "0017-9310",

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Otter, M, Athanasopoulos, G, Hlubek, N, Montagnese, M, Labois, M, Fishman, DA, de Haan, F, Singh, S, Lakehal, D, Giapintzakis, J, Hess, C, Revcolevschi, A & van Loosdrecht, PHM 2012, 'Optical probing of anisotropic heat transport in the quantum spin ladder Ca9La5Cu24O41', International Journal of Heat and Mass Transfer, vol. 55, no. 9-10, pp. 2531-2538. https://doi.org/10.1016/j.ijheatmasstransfer.2012.01.007

TY - JOUR

T1 - Optical probing of anisotropic heat transport in the quantum spin ladder Ca9La5Cu24O41

AU - Otter, M.

AU - Athanasopoulos, G.

AU - Hlubek, N.

AU - Montagnese, M.

AU - Labois, M.

AU - Fishman, D. A.

AU - de Haan, F.

AU - Singh, S.

AU - Lakehal, D.

AU - Giapintzakis, J.

AU - Hess, C.

AU - Revcolevschi, A.

AU - van Loosdrecht, P. H. M.

PY - 2012/4

Y1 - 2012/4

N2 - A transient thermal imaging technique is used to monitor heat diffusion at the surface of the antiferromagnetic spin ladder material Ca9La5Cu24O41. This material shows highly anisotropic thermal conductivity due to a large uni-directional magnetic heat transport along the ladders. The thermal conductivity is measured using optical heating as well as electrical heating, yielding 37 +/- 3W m(-1) K-1 for the fast (ladder) direction and 2.5 +/- 0.5W m K-1 for the slow direction, respectively. The fast direction result is in agreement with the thermal conductivity measured using other dynamic methods, but about 60% lower than the thermal conductivity measured using steady state methods. (C) 2012 Elsevier Ltd. All rights reserved.

AB - A transient thermal imaging technique is used to monitor heat diffusion at the surface of the antiferromagnetic spin ladder material Ca9La5Cu24O41. This material shows highly anisotropic thermal conductivity due to a large uni-directional magnetic heat transport along the ladders. The thermal conductivity is measured using optical heating as well as electrical heating, yielding 37 +/- 3W m(-1) K-1 for the fast (ladder) direction and 2.5 +/- 0.5W m K-1 for the slow direction, respectively. The fast direction result is in agreement with the thermal conductivity measured using other dynamic methods, but about 60% lower than the thermal conductivity measured using steady state methods. (C) 2012 Elsevier Ltd. All rights reserved.

KW - Magnetic excitations

KW - Quantum spin systems

KW - Spin ladder

KW - Anisotropic heat diffusion

KW - Thermal imaging

KW - THERMAL-CONDUCTIVITY

KW - SR14CU24O41

KW - INTERPLAY

KW - FLUORESCENCE

KW - MANAGEMENT

KW - RESOLUTION

KW - MAGNETISM

KW - SR2CUO3

KW - SRCUO2

U2 - 10.1016/j.ijheatmasstransfer.2012.01.007

DO - 10.1016/j.ijheatmasstransfer.2012.01.007

M3 - Article

SN - 0017-9310

VL - 55

SP - 2531

EP - 2538

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

IS - 9-10

ER -