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Quasiparticles in the pseudogap Phase of Underdoped Cuprate

Journal Article · · Europhysics Letters
Recent angle-resolved photoemission (Yang H.-B. et al., Nature, 456 (2008) 77) and scanning tunneling microscopy (Kohsaka Y. et al., Nature, 454 (2008) 1072) measurements on underdoped cuprates have yielded new spectroscopic information on quasiparticles in the pseudogap phase. New features of the normal state such as particle-hole asymmetry, maxima in the energy dispersion, and accompanying drops in the spectral weight of quasiparticles agree with the ansatz of Yang et al. for the single-particle propagator in the pseudogap phase. The coherent quasiparticle dispersion and reduced asymmetry in the tunneling density of states in the superconducting state can also be described by this propagator.
Research Organization:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Organization:
Doe - Office Of Science
DOE Contract Number:
AC02-98CH10886
OSTI ID:
980421
Report Number(s):
BNL--93339-2010-JA
Journal Information:
Europhysics Letters, Journal Name: Europhysics Letters Vol. 86; ISSN 0295-5075; ISSN EULEEJ
Country of Publication:
United States
Language:
English

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