Year: 2009
Type: article
Abstract: We derive the effective action for superconducting fluctuations in a four-band model for pnictides, discussing the emergence of a single critical mode out of a dominant interband pairing mechanism. We then apply our model to calculate the paraconductivity in two-dimensional and layered three-dimensional systems and compare our results with recent resistivity measurements in ${\text{SmFeAsO}}_{0.8}{\text{F}}_{0.2}$.
Source: Physical Review B
Institutions: Sapienza University of Rome, Centro Ricerche Enrico Fermi
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2002175779