Coherence and pairing in a doped Mott insulator: Application to the cuprates

2009/04/08 by T. Senthil, P. A. Lee · 1 citation
Physics and Astronomy · #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.103.076402

4+ pages, 1 figure. Sequel to arXiv:0903.0870

arxiv created 2009/04/08 · arxiv updated 2013/05/29

Abstract

The issues of single particle coherence and its interplay with singlet pairing are studied within the slave boson gauge theory of a doped Mott insulator. Prior work by one of us (T. Senthil, arXiv:0804.1555) showed that the coherence scale below which Landau quasiparticles emerge is parametrically lower than that identified in the slave boson mean field theory. Here we study the resulting new non-fermi liquid intermediate temperature regime characterized by a single particle scattering rate that is linear in temperature (T). In the presence of a d-wave pair amplitude this leads to a pseudogap state with T dependent Fermi arcs near the nodal direction. Implications for understanding the cuprates are discussed.

Citations

• Theory of a continuous Mott transition in two dimensions
• A synthesis of the phenomenology of the underdoped cuprates

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