Electronic Raman scattering in Bi2Sr2CaCu2O8+δ excited with c-axis polarized light

H. L. Liu; G. Blumberg; M. V. Klein; P. Guptasarma; D. G. Hinks

doi:10.1016/S0921-4534(00)01262-4

Electronic Raman scattering in Bi₂Sr₂CaCu₂O_8+δ excited with c-axis polarized light

H. L. Liu^*, G. Blumberg, M. V. Klein, P. Guptasarma, D. G. Hinks

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

Abstract

We report on the electronic Raman spectra excited and detected with photon polarization directions along the c-axis in Bi₂Sr₂CaCu₂O_8+δ single crystals. In the normal state, a resonant electronic continuum extends to 1.5 eV and gains significant intensity as the incoming photon energy increases. Below T_c, there is a low-frequency redistribution of the electronic continuum and the formation of a 2Δ peak in the superconducting state. The monotonic increase of 2Δ and 2Δ/k_BT_c with decreasing doping is unusual. In particular, this 2Δ feature, which has A_1g symmetry, is found at higher frequencies than those seen in the planar symmetries for all doping levels studied.

Original language	English
Pages (from-to)	2181-2184
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	341-348 (IV)
DOIs	https://doi.org/10.1016/S0921-4534(00)01262-4
Publication status	Published - 2000 Nov
Event	International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI - Houston, TX, USA Duration: 2000 Feb 20 → 2000 Feb 25

ASJC Scopus subject areas

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

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10.1016/S0921-4534(00)01262-4

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title = "Electronic Raman scattering in Bi2Sr2CaCu2O8+δ excited with c-axis polarized light",

abstract = "We report on the electronic Raman spectra excited and detected with photon polarization directions along the c-axis in Bi2Sr2CaCu2O8+δ single crystals. In the normal state, a resonant electronic continuum extends to 1.5 eV and gains significant intensity as the incoming photon energy increases. Below Tc, there is a low-frequency redistribution of the electronic continuum and the formation of a 2Δ peak in the superconducting state. The monotonic increase of 2Δ and 2Δ/kBTc with decreasing doping is unusual. In particular, this 2Δ feature, which has A1g symmetry, is found at higher frequencies than those seen in the planar symmetries for all doping levels studied.",

author = "Liu, {H. L.} and G. Blumberg and Klein, {M. V.} and P. Guptasarma and Hinks, {D. G.}",

year = "2000",

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doi = "10.1016/S0921-4534(00)01262-4",

language = "English",

volume = "341-348 (IV)",

pages = "2181--2184",

journal = "Physica C: Superconductivity and its applications",

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note = "International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI ; Conference date: 20-02-2000 Through 25-02-2000",

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TY - JOUR

T1 - Electronic Raman scattering in Bi2Sr2CaCu2O8+δ excited with c-axis polarized light

AU - Liu, H. L.

AU - Blumberg, G.

AU - Klein, M. V.

AU - Guptasarma, P.

AU - Hinks, D. G.

PY - 2000/11

Y1 - 2000/11

N2 - We report on the electronic Raman spectra excited and detected with photon polarization directions along the c-axis in Bi2Sr2CaCu2O8+δ single crystals. In the normal state, a resonant electronic continuum extends to 1.5 eV and gains significant intensity as the incoming photon energy increases. Below Tc, there is a low-frequency redistribution of the electronic continuum and the formation of a 2Δ peak in the superconducting state. The monotonic increase of 2Δ and 2Δ/kBTc with decreasing doping is unusual. In particular, this 2Δ feature, which has A1g symmetry, is found at higher frequencies than those seen in the planar symmetries for all doping levels studied.

AB - We report on the electronic Raman spectra excited and detected with photon polarization directions along the c-axis in Bi2Sr2CaCu2O8+δ single crystals. In the normal state, a resonant electronic continuum extends to 1.5 eV and gains significant intensity as the incoming photon energy increases. Below Tc, there is a low-frequency redistribution of the electronic continuum and the formation of a 2Δ peak in the superconducting state. The monotonic increase of 2Δ and 2Δ/kBTc with decreasing doping is unusual. In particular, this 2Δ feature, which has A1g symmetry, is found at higher frequencies than those seen in the planar symmetries for all doping levels studied.

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DO - 10.1016/S0921-4534(00)01262-4

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SN - 0921-4534

VL - 341-348 (IV)

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JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

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ER -

Electronic Raman scattering in Bi₂Sr₂CaCu₂O_8+δ excited with c-axis polarized light

Abstract

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