Two-Dimensional Fermi Liquid Behavior of the Superconductor Sr2RuO4

Yoshiteru Maeno; Koji Yoshida; Hiroaki Hashimoto; Shuji Nishizaki; Shin Ichi Ikeda; Minoru Nohara; Toshizo Fujita; Andrew P. Mackenzie; Nigel E. Hussey; J. Georg Bednorz; Frank Lichtenberg

doi:10.1143/JPSJ.66.1405

Two-Dimensional Fermi Liquid Behavior of the Superconductor Sr₂RuO₄

Yoshiteru Maeno, Koji Yoshida, Hiroaki Hashimoto, Shuji Nishizaki, Shin Ichi Ikeda, Minoru Nohara, Toshizo Fujita, Andrew P. Mackenzie, Nigel E. Hussey, J. Georg Bednorz, Frank Lichtenberg

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

66 Citations (Scopus)

Abstract

We report detailed normal state measurements of the resistivity, magnetic susceptibility and specific heat of high-quality single crystals of Sr₂RuO₄, the only copper-free, layered perovskite superconductor (T_c ≈ 1 K). It is intriguing that despite its very strong anisotropy (the ratio of the interlayer to in-plane resistivity exceeds 500) arising from the essentialy two-dimensional Fermi surface, the normal state properties are consistent with a universal description for a strongly correlated Fermi liquid. Therefore, Sr₂RuO₄ serves as an ideal reference material for the investigation of the limits of applicability of Fermi liquid theory to other highly correlated layered compounds, including high-T_c cuprates.

Original language	English
Pages (from-to)	1405-1408
Number of pages	4
Journal	journal of the physical society of japan
Volume	66
Issue number	5
DOIs	https://doi.org/10.1143/JPSJ.66.1405
Publication status	Published - May 1997
Externally published	Yes

Keywords

Anisotropy
Fermi liquid
Kadowaki-Woods ratio
Layered perovskite
Specific heat
SrRuO
Superconductor
Wilson ratio

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.66.1405

Cite this

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title = "Two-Dimensional Fermi Liquid Behavior of the Superconductor Sr2RuO4",

abstract = "We report detailed normal state measurements of the resistivity, magnetic susceptibility and specific heat of high-quality single crystals of Sr2RuO4, the only copper-free, layered perovskite superconductor (Tc ≈ 1 K). It is intriguing that despite its very strong anisotropy (the ratio of the interlayer to in-plane resistivity exceeds 500) arising from the essentialy two-dimensional Fermi surface, the normal state properties are consistent with a universal description for a strongly correlated Fermi liquid. Therefore, Sr2RuO4 serves as an ideal reference material for the investigation of the limits of applicability of Fermi liquid theory to other highly correlated layered compounds, including high-Tc cuprates.",

keywords = "Anisotropy, Fermi liquid, Kadowaki-Woods ratio, Layered perovskite, Specific heat, SrRuO, Superconductor, Wilson ratio",

author = "Yoshiteru Maeno and Koji Yoshida and Hiroaki Hashimoto and Shuji Nishizaki and Ikeda, {Shin Ichi} and Minoru Nohara and Toshizo Fujita and Mackenzie, {Andrew P.} and Hussey, {Nigel E.} and Bednorz, {J. Georg} and Frank Lichtenberg",

year = "1997",

month = may,

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language = "English",

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pages = "1405--1408",

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T1 - Two-Dimensional Fermi Liquid Behavior of the Superconductor Sr2RuO4

AU - Maeno, Yoshiteru

AU - Yoshida, Koji

AU - Hashimoto, Hiroaki

AU - Nishizaki, Shuji

AU - Ikeda, Shin Ichi

AU - Nohara, Minoru

AU - Fujita, Toshizo

AU - Mackenzie, Andrew P.

AU - Hussey, Nigel E.

AU - Bednorz, J. Georg

AU - Lichtenberg, Frank

PY - 1997/5

Y1 - 1997/5

N2 - We report detailed normal state measurements of the resistivity, magnetic susceptibility and specific heat of high-quality single crystals of Sr2RuO4, the only copper-free, layered perovskite superconductor (Tc ≈ 1 K). It is intriguing that despite its very strong anisotropy (the ratio of the interlayer to in-plane resistivity exceeds 500) arising from the essentialy two-dimensional Fermi surface, the normal state properties are consistent with a universal description for a strongly correlated Fermi liquid. Therefore, Sr2RuO4 serves as an ideal reference material for the investigation of the limits of applicability of Fermi liquid theory to other highly correlated layered compounds, including high-Tc cuprates.

AB - We report detailed normal state measurements of the resistivity, magnetic susceptibility and specific heat of high-quality single crystals of Sr2RuO4, the only copper-free, layered perovskite superconductor (Tc ≈ 1 K). It is intriguing that despite its very strong anisotropy (the ratio of the interlayer to in-plane resistivity exceeds 500) arising from the essentialy two-dimensional Fermi surface, the normal state properties are consistent with a universal description for a strongly correlated Fermi liquid. Therefore, Sr2RuO4 serves as an ideal reference material for the investigation of the limits of applicability of Fermi liquid theory to other highly correlated layered compounds, including high-Tc cuprates.

KW - Anisotropy

KW - Fermi liquid

KW - Kadowaki-Woods ratio

KW - Layered perovskite

KW - Specific heat

KW - SrRuO

KW - Superconductor

KW - Wilson ratio

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