Spatial symmetry of the superconducting gap of YBa2Cu3O7−δ obtained from femtosecond spectroscopy

Chih-Wei Luo; M. H. Chen; S. P. Chen; Kaung-Hsiung Wu; Jenh-Yih Juang; Jiunn-Yuan Lin; T. M. Uen; Y. S. Gou

doi:10.1103/PhysRevB.68.220508

Spatial symmetry of the superconducting gap of YBa₂Cu₃O_7−δ obtained from femtosecond spectroscopy

Chih-Wei Luo, M. H. Chen, S. P. Chen, Kaung-Hsiung Wu, Jenh-Yih Juang, Jiunn-Yuan Lin, T. M. Uen, Y. S. Gou

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

8 Scopus citations

Abstract

The polarized femtosecond spectroscopies obtained from well characterized (100) and (110) YBa₂Cu₃O_7−δ thin films are reported. This bulk-sensitive spectroscopy, combined with the well-textured samples, serves as an effective probe to quasiparticle relaxation dynamics in different crystalline orientations. The significant anisotropy in both the magnitude of the photoinduced transient reflectivity change and the characteristic relaxation time indicates that the nature of the relaxation channel is intrinsically different in various axes and planes. By an orientation-dependent analysis, d-wave symmetry of the bulk-superconducting gap in cuprate superconductors emerges naturally.

Original language	American English
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	68
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.68.220508
State	Published - 31 Dec 2003

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title = "Spatial symmetry of the superconducting gap of YBa2Cu3O7−δ obtained from femtosecond spectroscopy",

abstract = "The polarized femtosecond spectroscopies obtained from well characterized (100) and (110) YBa2Cu3O7−δ thin films are reported. This bulk-sensitive spectroscopy, combined with the well-textured samples, serves as an effective probe to quasiparticle relaxation dynamics in different crystalline orientations. The significant anisotropy in both the magnitude of the photoinduced transient reflectivity change and the characteristic relaxation time indicates that the nature of the relaxation channel is intrinsically different in various axes and planes. By an orientation-dependent analysis, d-wave symmetry of the bulk-superconducting gap in cuprate superconductors emerges naturally.",

author = "Chih-Wei Luo and Chen, {M. H.} and Chen, {S. P.} and Kaung-Hsiung Wu and Jenh-Yih Juang and Jiunn-Yuan Lin and Uen, {T. M.} and Gou, {Y. S.}",

year = "2003",

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T1 - Spatial symmetry of the superconducting gap of YBa2Cu3O7−δ obtained from femtosecond spectroscopy

AU - Luo, Chih-Wei

AU - Chen, M. H.

AU - Chen, S. P.

AU - Wu, Kaung-Hsiung

AU - Juang, Jenh-Yih

AU - Lin, Jiunn-Yuan

AU - Uen, T. M.

AU - Gou, Y. S.

PY - 2003/12/31

Y1 - 2003/12/31

N2 - The polarized femtosecond spectroscopies obtained from well characterized (100) and (110) YBa2Cu3O7−δ thin films are reported. This bulk-sensitive spectroscopy, combined with the well-textured samples, serves as an effective probe to quasiparticle relaxation dynamics in different crystalline orientations. The significant anisotropy in both the magnitude of the photoinduced transient reflectivity change and the characteristic relaxation time indicates that the nature of the relaxation channel is intrinsically different in various axes and planes. By an orientation-dependent analysis, d-wave symmetry of the bulk-superconducting gap in cuprate superconductors emerges naturally.

AB - The polarized femtosecond spectroscopies obtained from well characterized (100) and (110) YBa2Cu3O7−δ thin films are reported. This bulk-sensitive spectroscopy, combined with the well-textured samples, serves as an effective probe to quasiparticle relaxation dynamics in different crystalline orientations. The significant anisotropy in both the magnitude of the photoinduced transient reflectivity change and the characteristic relaxation time indicates that the nature of the relaxation channel is intrinsically different in various axes and planes. By an orientation-dependent analysis, d-wave symmetry of the bulk-superconducting gap in cuprate superconductors emerges naturally.

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U2 - 10.1103/PhysRevB.68.220508

DO - 10.1103/PhysRevB.68.220508

M3 - Article

AN - SCOPUS:17444453599

SN - 2469-9950

VL - 68

JO - Physical Review B

JF - Physical Review B

IS - 22

ER -

Spatial symmetry of the superconducting gap of YBa₂Cu₃O_7−δ obtained from femtosecond spectroscopy

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