Transition metal substitutions, incommensurability and spin fluctuations in BaFe2As2: What's different about Cu?

Details Transition metal substitutions, incommensurability and spin fluctuations in BaFe2As2: What's different about Cu? Transition metal substitutions, incommensurability and spin fluctuations in BaFe2As2: What's different about Cu?

2012-04-06

arxiv.org/abs/1204.1538v1

Physics

Condensed Matter

Superconductivity

5 pages, 5 figures

Scientific paper

Neutron diffraction experiments show that the appearance of incommensurate spin-density wave order and the suppression of ordered magnetism in Co and Ni substituted BaFe2As2 appear consistent with a simple band-filling model. For Cu, however, the magnetic phase diagram does not display incommensurate order demonstrating that a rigid-band approach breaks down. Motivated by the observed differences in magnetic ordering and strong suppression of superconductivity with Cu substitution, we performed inelastic magnetic scattering measurements on Ba(Fe1-xMx)2As2 (M = Co, Cu) which show that the normal state spin fluctuation spectra are indistinguishable. These results suggest that impurity effects in the Fe plane play a significant role in controlling magnetism and the appearance of superconductivity.

Affiliated with

Also associated with

No associations

Rating

Transition metal substitutions, incommensurability and spin fluctuations in BaFe2As2: What's different about Cu? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Transition metal substitutions, incommensurability and spin fluctuations in BaFe2As2: What's different about Cu?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transition metal substitutions, incommensurability and spin fluctuations in BaFe2As2: What's different about Cu? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-185728