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The Wiedemann-Franz law in the putative one-dimensional metallic phase of PrBa2Cu4O8

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The Wiedemann-Franz law in the putative one-dimensional metallic phase of PrBa2Cu4O8. / Bangura, A. F.; Xu, Xiaofeng; Wakeham, N.; Peng, N.; Horii, S.; Hussey, N. E.

In: Scientific Reports, Vol. 3, 3261, 20.11.2013.

Research output: Contribution to journalArticle (Academic Journal)

Harvard

Bangura, AF, Xu, X, Wakeham, N, Peng, N, Horii, S & Hussey, NE 2013, 'The Wiedemann-Franz law in the putative one-dimensional metallic phase of PrBa2Cu4O8', Scientific Reports, vol. 3, 3261. https://doi.org/10.1038/srep03261

APA

Bangura, A. F., Xu, X., Wakeham, N., Peng, N., Horii, S., & Hussey, N. E. (2013). The Wiedemann-Franz law in the putative one-dimensional metallic phase of PrBa2Cu4O8. Scientific Reports, 3, [3261]. https://doi.org/10.1038/srep03261

Vancouver

Bangura AF, Xu X, Wakeham N, Peng N, Horii S, Hussey NE. The Wiedemann-Franz law in the putative one-dimensional metallic phase of PrBa2Cu4O8. Scientific Reports. 2013 Nov 20;3. 3261. https://doi.org/10.1038/srep03261

Author

Bangura, A. F. ; Xu, Xiaofeng ; Wakeham, N. ; Peng, N. ; Horii, S. ; Hussey, N. E. / The Wiedemann-Franz law in the putative one-dimensional metallic phase of PrBa2Cu4O8. In: Scientific Reports. 2013 ; Vol. 3.

Bibtex

@article{e6f3969f70d846e686de8bb7fa7ed3d8,
title = "The Wiedemann-Franz law in the putative one-dimensional metallic phase of PrBa2Cu4O8",
abstract = "The nature of the electronic state of a metal depends strongly on its dimensionality. In a system of isolated conducting chains, the Fermi-liquid (quasiparticle) description appropriate for higher dimensions is replaced by the so-called Tomonaga-Luttinger liquid picture characterized by collective excitations of spin and charge. Temperature is often regarded as a viable tuning parameter between states of different dimensionality, but what happens once thermal broadening becomes comparable to the interchain hopping energy remains an unresolved issue, one that is central to many organic and inorganic conductors. Here we use the ratio of the thermal to electrical conductivities to probe the nature of the electronic state in PrBa2Cu4O8 as a function of temperature. We find that despite the interchain transport becoming non-metallic, the charge carriers within the CuO chains appear to retain their quasiparticle nature. This implies that temperature alone cannot induce a crossover from Fermi-liquid to Tomonaga-Luttinger-liquid behaviour in quasi-one-dimensional metals.",
keywords = "LUTTINGER LIQUID, THERMAL TRANSPORT, DOUBLE CHAINS, SYSTEMS, CONDUCTIVITY, FERMI, RESISTIVITY, CU",
author = "Bangura, {A. F.} and Xiaofeng Xu and N. Wakeham and N. Peng and S. Horii and Hussey, {N. E.}",
year = "2013",
month = nov,
day = "20",
doi = "10.1038/srep03261",
language = "English",
volume = "3",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Springer Nature",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - The Wiedemann-Franz law in the putative one-dimensional metallic phase of PrBa2Cu4O8

AU - Bangura, A. F.

AU - Xu, Xiaofeng

AU - Wakeham, N.

AU - Peng, N.

AU - Horii, S.

AU - Hussey, N. E.

PY - 2013/11/20

Y1 - 2013/11/20

N2 - The nature of the electronic state of a metal depends strongly on its dimensionality. In a system of isolated conducting chains, the Fermi-liquid (quasiparticle) description appropriate for higher dimensions is replaced by the so-called Tomonaga-Luttinger liquid picture characterized by collective excitations of spin and charge. Temperature is often regarded as a viable tuning parameter between states of different dimensionality, but what happens once thermal broadening becomes comparable to the interchain hopping energy remains an unresolved issue, one that is central to many organic and inorganic conductors. Here we use the ratio of the thermal to electrical conductivities to probe the nature of the electronic state in PrBa2Cu4O8 as a function of temperature. We find that despite the interchain transport becoming non-metallic, the charge carriers within the CuO chains appear to retain their quasiparticle nature. This implies that temperature alone cannot induce a crossover from Fermi-liquid to Tomonaga-Luttinger-liquid behaviour in quasi-one-dimensional metals.

AB - The nature of the electronic state of a metal depends strongly on its dimensionality. In a system of isolated conducting chains, the Fermi-liquid (quasiparticle) description appropriate for higher dimensions is replaced by the so-called Tomonaga-Luttinger liquid picture characterized by collective excitations of spin and charge. Temperature is often regarded as a viable tuning parameter between states of different dimensionality, but what happens once thermal broadening becomes comparable to the interchain hopping energy remains an unresolved issue, one that is central to many organic and inorganic conductors. Here we use the ratio of the thermal to electrical conductivities to probe the nature of the electronic state in PrBa2Cu4O8 as a function of temperature. We find that despite the interchain transport becoming non-metallic, the charge carriers within the CuO chains appear to retain their quasiparticle nature. This implies that temperature alone cannot induce a crossover from Fermi-liquid to Tomonaga-Luttinger-liquid behaviour in quasi-one-dimensional metals.

KW - LUTTINGER LIQUID

KW - THERMAL TRANSPORT

KW - DOUBLE CHAINS

KW - SYSTEMS

KW - CONDUCTIVITY

KW - FERMI

KW - RESISTIVITY

KW - CU

U2 - 10.1038/srep03261

DO - 10.1038/srep03261

M3 - Article (Academic Journal)

C2 - 24253025

VL - 3

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 3261

ER -