Fine Details of the Nodal Electronic Excitations in Bi2Sr2CaCusO8+delta

Authors

• T. Valla, Brookhaven National LaboratoryFollow
• T. E. Kidd, Brookhaven National LaboratoryFollow
• J. D. Rameau, Brookhaven National LaboratoryFollow
• H.-J. Noh, Brookhaven National LaboratoryFollow
• G. D. Gu, Brookhaven National LaboratoryFollow
• P. D. Johnson, Brookhaven National LaboratoryFollow
• H.-B. Yang, Boston CollegeFollow
• H. Ding, Boston CollegeFollow

Document Type

Article

Journal/Book/Conference Title Title

Physical Review B

Volume

73

Issue

18

First Page

184518-1

Last Page

184518-5

Abstract

Very high energy resolution photoemission experiments on high quality samples of optimally doped Bi₂Sr₂CaCu₂O_8+δ show new features in the low-energy electronic excitations. A marked change in the binding energy and temperature dependence of the near-nodal scattering rates is observed near the superconducting transition temperature, T_C. The temperature slope of the scattering rate measured at low energy shows a discontinuity at T_C. In the superconducting state, coherent excitations are found with the scattering rates showing a cubic dependence on frequency and temperature. The superconducting gap has a d-wave magnitude with negligible contribution from higher harmonics. Further, the bilayer splitting has been found to be finite at the nodal point

Department

Department of Physics

Comments

First published in Physical Review B, v. 73, . 18 (2006), published by the American Physical Society. DOI: 10.1103/PhysRevB.73.184518

Original Publication Date

5-2006

DOI of published version

10.1103/PhysRevB.73.184518

Repository

UNI ScholarWorks, University of Northern Iowa, Rod Library

Copyright

©2006 T. Valla, T.E. Kidd, J.D. Rameau, H.-J. Noh, G.D. Gu, P.D. Johnson, H.-B. Yang, and H. Ding. The copyright holder has granted permission for posting.

Date Digital

2006

Language

EN

File Format

application/pdf

Recommended Citation

Valla, T.; Kidd, T. E.; Rameau, J. D.; Noh, H.-J.; Gu, G. D.; Johnson, P. D.; Yang, H.-B.; and Ding, H., "Fine Details of the Nodal Electronic Excitations in Bi2Sr2CaCusO8+delta" (2006). Faculty Work. 13.
https://scholarworks.uni.edu/phy_facpub/13