Electronic Raman scattering in Tl2Ba2CuO6+δ: Oxygen doping-effects

L.V. Gasparov; P. Lemmens; N.N. Kolesnikov; G. Güntherodt

doi:10.1016/S0921-4526(97)00461-4

Electronic Raman scattering in Tl2Ba2CuO6+δ: Oxygen doping-effects

L.V. Gasparov, P. Lemmens, N.N. Kolesnikov, G. Güntherodt

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

Abstract

We present electronic Raman scattering measurements of moderately overdoped Tl2Ba2CuO6+δ (Tc=56 K) and compare it with measurements on optimally and strongly overdoped samples. By taking the pair-breaking peak in the B1g scattering component as 2Δ0, we found that the 2Δ0/kBTc ratio decreases from 8 to 3 with increasing doping. The intensity of the A1g scattering component decreases by an order of magnitude in going to the overdoped samples. The behavior of the low-frequency scattering of the B1g and B2g symmetry components for T<Tc is “robust” for all three dopings. It can be described by the ω3- and ω-law, respectively, which is consistent with d-wave symmetry of the superconducting order parameter.

Original language	American English
Journal	Physica B-condensed Matter
Volume	244
DOIs	https://doi.org/10.1016/S0921-4526(97)00461-4
State	Published - Jan 1 1998
Externally published	Yes

Disciplines

Atomic, Molecular and Optical Physics
Physics
Quantum Physics
Condensed Matter Physics

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title = "Electronic Raman scattering in Tl2Ba2CuO6+δ: Oxygen doping-effects",

abstract = "We present electronic Raman scattering measurements of moderately overdoped Tl2Ba2CuO6+δ (Tc=56 K) and compare it with measurements on optimally and strongly overdoped samples. By taking the pair-breaking peak in the B1g scattering component as 2Δ0, we found that the 2Δ0/kBTc ratio decreases from 8 to 3 with increasing doping. The intensity of the A1g scattering component decreases by an order of magnitude in going to the overdoped samples. The behavior of the low-frequency scattering of the B1g and B2g symmetry components for T",

author = "L.V. Gasparov and P. Lemmens and N.N. Kolesnikov and G. G{\"u}ntherodt",

note = "We present electronic Raman scattering measurements of moderately overdoped Tl 2Ba 2CuO 6+δ ( T c=56 K) and compare it with measurements on optimally and strongly overdoped samples. By taking the pair-breaking peak in the B 1g scattering component as 2 Δ 0, we found that the 2 Δ 0/ k B T c ratio decreases from 8 to 3 with increasing doping.",

year = "1998",

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doi = "10.1016/S0921-4526(97)00461-4",

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journal = "Physica B-condensed Matter",

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T1 - Electronic Raman scattering in Tl2Ba2CuO6+δ: Oxygen doping-effects

AU - Gasparov, L.V.

AU - Lemmens, P.

AU - Kolesnikov, N.N.

AU - Güntherodt, G.

N1 - We present electronic Raman scattering measurements of moderately overdoped Tl 2Ba 2CuO 6+δ ( T c=56 K) and compare it with measurements on optimally and strongly overdoped samples. By taking the pair-breaking peak in the B 1g scattering component as 2 Δ 0, we found that the 2 Δ 0/ k B T c ratio decreases from 8 to 3 with increasing doping.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - We present electronic Raman scattering measurements of moderately overdoped Tl2Ba2CuO6+δ (Tc=56 K) and compare it with measurements on optimally and strongly overdoped samples. By taking the pair-breaking peak in the B1g scattering component as 2Δ0, we found that the 2Δ0/kBTc ratio decreases from 8 to 3 with increasing doping. The intensity of the A1g scattering component decreases by an order of magnitude in going to the overdoped samples. The behavior of the low-frequency scattering of the B1g and B2g symmetry components for T

AB - We present electronic Raman scattering measurements of moderately overdoped Tl2Ba2CuO6+δ (Tc=56 K) and compare it with measurements on optimally and strongly overdoped samples. By taking the pair-breaking peak in the B1g scattering component as 2Δ0, we found that the 2Δ0/kBTc ratio decreases from 8 to 3 with increasing doping. The intensity of the A1g scattering component decreases by an order of magnitude in going to the overdoped samples. The behavior of the low-frequency scattering of the B1g and B2g symmetry components for T

UR - https://www.sciencedirect.com/science/article/pii/S0921452697004614

U2 - 10.1016/S0921-4526(97)00461-4

DO - 10.1016/S0921-4526(97)00461-4

M3 - Article

SN - 0921-4526

VL - 244

JO - Physica B-condensed Matter

JF - Physica B-condensed Matter

ER -

Electronic Raman scattering in Tl2Ba2CuO6+δ: Oxygen doping-effects

Abstract

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