LaFeAsO$_{1-x}$F$_x$: A low carrier density superconductor near itinerant magnetism

Preprint

4 March 2008

preprint
Published by arXiv in arXiv

Abstract

The density functional electronic structure, phonons and magnetic properties of 26K superconducting LaFeAsO are reported. We find that this material is a low carrier density but high density of states near 2D ionic metal near itinerant magnetism. We find competing ferromagnetic and antiferromagnetic fluctuations. The balance between these is controlled by the doping level. This provides a new window into the interplay between magnetism and superconductivity.

Keywords

BALANCE BETWEEN THESE IS CONTROLLED
LOW CARRIER DENSITY
MAGNETIC PROPERTIES
SUPERCONDUCTIVITY
ANTIFERROMAGNETIC
DENSITY OF STATES
SUPERCONDUCTOR
LAFEASO

All Related Versions

Version 1, 2008-03-04, ArXiv
Version 2, 2008-06-13, ArXiv
Published version: Physical Review Letters, 100 (23), 237003.

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