Phys. Rev. Lett. 93, 217004 (2004) [4 pages]Charge Modulation, Spin Response, and Dual Hofstadter Butterfly in High-Tc CupratesReceived 28 April 2004; published 17 November 2004 The modulated density of states observed in recent STM experiments in underdoped cuprates is argued to be a manifestation of the charge-density wave of Cooper pairs (CPCDW). CPCDW formation is due to superconducting phase fluctuations enhanced by Mott-Hubbard correlations near half-filling. The physics behind the CPCDW is related to a Hofstadter problem in a dual superconductor. It is shown that CPCDW does not impact nodal fermions at the leading order. An experiment is proposed to probe coupling of the CPCDW to the spin carried by nodal quasiparticles. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.217004
DOI:
10.1103/PhysRevLett.93.217004
PACS:
74.20.Mn, 74.40.+k
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