Defect and anisotropic gap-induced quasi-one-dimensional modulation of the local density of states of YBa2Cu3O7-δ

Khee Kyun Voo; Hong Yi Chen; W. C. Wu

Defect and anisotropic gap-induced quasi-one-dimensional modulation of the local density of states of YBa₂Cu₃O_7-δ

Khee Kyun Voo, Hong Yi Chen, W. C. Wu

Department of Physics

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

Abstract

Motivated by recent angle-resolved photoemission spectroscopy (ARPES) measurement that superconducting YBa₂Cu₃O _7-δ (YBCO) is consistent with a d_x2-y2+s-symmetry gap, we show possible defect-induced quasi-one-dimensional modulations of the local density of states in YBCO. These stripelike structures are more conspicuous at higher measuring biases of the scanning tunneling microscopy (STM). Observation of these STM spectra would provide a unified picture of anisotropic gap on YBCO among STM, ARPES, and inelastic neutron scattering measurements.

Original language	English
Article number	012505
Pages (from-to)	125051-125054
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	68
Issue number	1
Publication status	Published - 2003 Jul

ASJC Scopus subject areas

Condensed Matter Physics

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abstract = "Motivated by recent angle-resolved photoemission spectroscopy (ARPES) measurement that superconducting YBa2Cu3O 7-δ (YBCO) is consistent with a dx2-y2+s-symmetry gap, we show possible defect-induced quasi-one-dimensional modulations of the local density of states in YBCO. These stripelike structures are more conspicuous at higher measuring biases of the scanning tunneling microscopy (STM). Observation of these STM spectra would provide a unified picture of anisotropic gap on YBCO among STM, ARPES, and inelastic neutron scattering measurements.",

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AU - Voo, Khee Kyun

AU - Chen, Hong Yi

AU - Wu, W. C.

PY - 2003/7

Y1 - 2003/7

N2 - Motivated by recent angle-resolved photoemission spectroscopy (ARPES) measurement that superconducting YBa2Cu3O 7-δ (YBCO) is consistent with a dx2-y2+s-symmetry gap, we show possible defect-induced quasi-one-dimensional modulations of the local density of states in YBCO. These stripelike structures are more conspicuous at higher measuring biases of the scanning tunneling microscopy (STM). Observation of these STM spectra would provide a unified picture of anisotropic gap on YBCO among STM, ARPES, and inelastic neutron scattering measurements.

AB - Motivated by recent angle-resolved photoemission spectroscopy (ARPES) measurement that superconducting YBa2Cu3O 7-δ (YBCO) is consistent with a dx2-y2+s-symmetry gap, we show possible defect-induced quasi-one-dimensional modulations of the local density of states in YBCO. These stripelike structures are more conspicuous at higher measuring biases of the scanning tunneling microscopy (STM). Observation of these STM spectra would provide a unified picture of anisotropic gap on YBCO among STM, ARPES, and inelastic neutron scattering measurements.

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Defect and anisotropic gap-induced quasi-one-dimensional modulation of the local density of states of YBa₂Cu₃O_7-δ

Abstract

ASJC Scopus subject areas

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