Strong damping of the c-axis plasmon in high-Tc cuprate superconductors

Jae H. Kim; H. S. Somal; M. T. Czyzyk; D. van der Marel; A. Wittlin; A. M. Gerrits; V. H.M. Duijn; N. T. Hien; A. A. Menovsky

doi:10.1016/0921-4534(95)00198-0

Strong damping of the c-axis plasmon in high-T_c cuprate superconductors

Jae H. Kim, H. S. Somal, M. T. Czyzyk, D. van der Marel, A. Wittlin, A. M. Gerrits, V. H.M. Duijn, N. T. Hien, A. A. Menovsky

Department of Physics

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

51 Citations (Scopus)

Abstract

We analyze the infrared reflectivity of La_1.85Sr_0.15CuO₄ single crystals with E parallel to the c-axis. The plasma edge at around 6 meV (50 cm^-1), which occurs only for T < T_c, is due to Cooper-pair tunneling. This low value of the plasma edge is shown to be consistent with the c-axis plasma frequency obtained from LDA band structure calculations (> 0.1 eV) if we take into account that the single-particle charge transport along the c-axis is strongly incoherent in the normal state, and remains so in the superconducting state. From a comparison of the optical conductivity with model calculations based on s- and d-wave weak-coupling theory in the dirty limit, we find no evidence for a reduction of the c-axis quasi-particle scattering rate below T_c. The c-axis scattering rate, the normal-state c-axis plasma frequency, and T_c obey hγ > hν_p ≫ 3.5κ_BT_c, which is exactly opposite to the clean limit.

Original language	English
Pages (from-to)	297-308
Number of pages	12
Journal	Physica C: Superconductivity and its applications
Volume	247
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(95)00198-0
Publication status	Published - 1995 Jun 1

Bibliographical note

Funding Information:
We gratefully acknowledge stimulating discussions with P. W. Anderson during the preparation of this manuscript. This investigation was supported by the Netherlands Foundation for Fundamental Research on Matter (FOM) with financial aid from the Neder-landse Organisatie voor Wetenschappelijk Onderzoek (NWO).

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/0921-4534(95)00198-0

Cite this

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title = "Strong damping of the c-axis plasmon in high-Tc cuprate superconductors",

abstract = "We analyze the infrared reflectivity of La1.85Sr0.15CuO4 single crystals with E parallel to the c-axis. The plasma edge at around 6 meV (50 cm-1), which occurs only for T < Tc, is due to Cooper-pair tunneling. This low value of the plasma edge is shown to be consistent with the c-axis plasma frequency obtained from LDA band structure calculations (> 0.1 eV) if we take into account that the single-particle charge transport along the c-axis is strongly incoherent in the normal state, and remains so in the superconducting state. From a comparison of the optical conductivity with model calculations based on s- and d-wave weak-coupling theory in the dirty limit, we find no evidence for a reduction of the c-axis quasi-particle scattering rate below Tc. The c-axis scattering rate, the normal-state c-axis plasma frequency, and Tc obey hγ > hνp ≫ 3.5κBTc, which is exactly opposite to the clean limit.",

author = "Kim, {Jae H.} and Somal, {H. S.} and Czyzyk, {M. T.} and {van der Marel}, D. and A. Wittlin and Gerrits, {A. M.} and Duijn, {V. H.M.} and Hien, {N. T.} and Menovsky, {A. A.}",

note = "Funding Information: We gratefully acknowledge stimulating discussions with P. W. Anderson during the preparation of this manuscript. This investigation was supported by the Netherlands Foundation for Fundamental Research on Matter (FOM) with financial aid from the Neder-landse Organisatie voor Wetenschappelijk Onderzoek (NWO).",

year = "1995",

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doi = "10.1016/0921-4534(95)00198-0",

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T1 - Strong damping of the c-axis plasmon in high-Tc cuprate superconductors

AU - Kim, Jae H.

AU - Somal, H. S.

AU - Czyzyk, M. T.

AU - van der Marel, D.

AU - Wittlin, A.

AU - Gerrits, A. M.

AU - Duijn, V. H.M.

AU - Hien, N. T.

AU - Menovsky, A. A.

N1 - Funding Information: We gratefully acknowledge stimulating discussions with P. W. Anderson during the preparation of this manuscript. This investigation was supported by the Netherlands Foundation for Fundamental Research on Matter (FOM) with financial aid from the Neder-landse Organisatie voor Wetenschappelijk Onderzoek (NWO).

PY - 1995/6/1

Y1 - 1995/6/1

N2 - We analyze the infrared reflectivity of La1.85Sr0.15CuO4 single crystals with E parallel to the c-axis. The plasma edge at around 6 meV (50 cm-1), which occurs only for T < Tc, is due to Cooper-pair tunneling. This low value of the plasma edge is shown to be consistent with the c-axis plasma frequency obtained from LDA band structure calculations (> 0.1 eV) if we take into account that the single-particle charge transport along the c-axis is strongly incoherent in the normal state, and remains so in the superconducting state. From a comparison of the optical conductivity with model calculations based on s- and d-wave weak-coupling theory in the dirty limit, we find no evidence for a reduction of the c-axis quasi-particle scattering rate below Tc. The c-axis scattering rate, the normal-state c-axis plasma frequency, and Tc obey hγ > hνp ≫ 3.5κBTc, which is exactly opposite to the clean limit.

AB - We analyze the infrared reflectivity of La1.85Sr0.15CuO4 single crystals with E parallel to the c-axis. The plasma edge at around 6 meV (50 cm-1), which occurs only for T < Tc, is due to Cooper-pair tunneling. This low value of the plasma edge is shown to be consistent with the c-axis plasma frequency obtained from LDA band structure calculations (> 0.1 eV) if we take into account that the single-particle charge transport along the c-axis is strongly incoherent in the normal state, and remains so in the superconducting state. From a comparison of the optical conductivity with model calculations based on s- and d-wave weak-coupling theory in the dirty limit, we find no evidence for a reduction of the c-axis quasi-particle scattering rate below Tc. The c-axis scattering rate, the normal-state c-axis plasma frequency, and Tc obey hγ > hνp ≫ 3.5κBTc, which is exactly opposite to the clean limit.

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