ab plane ac conductivity in the cuprates: Pseudogap effects below T-c

作者：Iyengar A^*; Stajic J; Kao YJ; Levin K

来源：Physical Review Letters, 2003, 90(18): 187003.

DOI：10.1103/PhysRevLett.90.187003

Building on our understanding of the superfluid density rho(s)(T), we show how the pseudogap enters the in-plane optical conductivity sigma(omega,T) for temperatures Tless than or equal toT(c). Signatures in sigma(omega,T) associated with competing proposals of a "hidden order" and "superconducting" origin for the pseudogap differ in their qualitative omega,T dependences. For the latter case, as T increases from 0, Re sigma(omega) is enhanced at high and low frequencies. We discuss these theories in light of current experiments.

• 出版日期2003-5-9