Volume 85, Number 3, February 2009
Article Number 37005
Number of page(s) 5
Section Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
Published online 13 February 2009
EPL, 85 (2009) 37005
DOI: 10.1209/0295-5075/85/37005

Antiferromagnetic correlation and the pairing mechanism of the cuprates and iron pnictides: A view from the functional renormalization group studies

Fa Wang1, 2, Hui Zhai1, 2 and Dung-Hai Lee1, 2

1   Department of Physics, University of California at Berkeley - Berkeley, CA 94720, USA
2   Materials Sciences Division, Lawrence Berkeley National Laboratory - Berkeley, CA 94720, USA

received 4 December 2008; accepted in final form 19 January 2009; published February 2009
published online 13 February 2009

We compare the one-loop functional renormalization group results for the cuprates and the iron pnictides. Interestingly a coherent picture suggesting that antiferromagnetic correlation causes pairing for both materials emerges.

74.20.Mn - Nonconventional mechanisms (spin fluctuations, polarons and bipolarons, resonating valence bond model, anyon mechanism, marginal Fermi liquid, Luttinger liquid, etc.).
74.20.Rp - Pairing symmetries (other than s-wave).

© EPLA 2009