Systematics of infrared excitation in layered cuprates redshift at Tc

F. Li; Y. H. Kim; S. W. Cheong

doi:10.1016/0921-4534(95)00660-5

Systematics of infrared excitation in layered cuprates redshift at T_c

F. Li, Y. H. Kim, S. W. Cheong

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

8 Scopus citations

Abstract

We observed two photoinduced infrared excitations in insulating Y₁Ba₂Cu₃O_6+y, similar to La₂CuO₄ and Nd₂Cuo₄ systems. Our results indicate that the lower-energy excitation does not have the same physical origin as the higher-energy excitation. Remarkably, the lower-energy excitation peak position abruptly redshifts at a well-defined onset temperature, coinciding with the T_c of the corresponding superconductor. Furthermore, the amount of the redshift scales with T_c.

Original language	English (US)
Pages (from-to)	167-172
Number of pages	6
Journal	Physica C: Superconductivity and its applications
Volume	257
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(95)00660-5
State	Published - Jan 20 1996
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1016/0921-4534(95)00660-5

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title = "Systematics of infrared excitation in layered cuprates redshift at Tc",

abstract = "We observed two photoinduced infrared excitations in insulating Y1Ba2Cu3O6+y, similar to La2CuO4 and Nd2Cuo4 systems. Our results indicate that the lower-energy excitation does not have the same physical origin as the higher-energy excitation. Remarkably, the lower-energy excitation peak position abruptly redshifts at a well-defined onset temperature, coinciding with the Tc of the corresponding superconductor. Furthermore, the amount of the redshift scales with Tc.",

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year = "1996",

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doi = "10.1016/0921-4534(95)00660-5",

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T1 - Systematics of infrared excitation in layered cuprates redshift at Tc

AU - Li, F.

AU - Kim, Y. H.

AU - Cheong, S. W.

PY - 1996/1/20

Y1 - 1996/1/20

N2 - We observed two photoinduced infrared excitations in insulating Y1Ba2Cu3O6+y, similar to La2CuO4 and Nd2Cuo4 systems. Our results indicate that the lower-energy excitation does not have the same physical origin as the higher-energy excitation. Remarkably, the lower-energy excitation peak position abruptly redshifts at a well-defined onset temperature, coinciding with the Tc of the corresponding superconductor. Furthermore, the amount of the redshift scales with Tc.

AB - We observed two photoinduced infrared excitations in insulating Y1Ba2Cu3O6+y, similar to La2CuO4 and Nd2Cuo4 systems. Our results indicate that the lower-energy excitation does not have the same physical origin as the higher-energy excitation. Remarkably, the lower-energy excitation peak position abruptly redshifts at a well-defined onset temperature, coinciding with the Tc of the corresponding superconductor. Furthermore, the amount of the redshift scales with Tc.

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U2 - 10.1016/0921-4534(95)00660-5

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JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - 1-2

ER -

Systematics of infrared excitation in layered cuprates redshift at T_c

Abstract

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