Rare earth substitution in lattice-tuned Sr0.3Ca0.7Fe2As2 solid solutions

Details Rare earth substitution in lattice-tuned Sr0.3Ca0.7Fe2As2 solid solutions Rare earth substitution in lattice-tuned Sr0.3Ca0.7Fe2As2 solid solutions

2012-04-04

arxiv.org/abs/1204.1335v1

Physics

Condensed Matter

Superconductivity

Submitted to Superconductor Science and Technology focus issue: "Fe-based superconductors: materials, theory, experiment and a

Scientific paper

The effects of aliovalent rare earth substitution on the physical properties of Sr0.3Ca0.7Fe2As2 solid solutions are explored. Electrical transport, magnetic susceptibility and structural characterization data as a function of La substitution into (Sr_1-y_Ca_y)_1-x_La_x_Fe2As2 single crystals con?firm the ability to suppress the antiferromagnetic ordering temperature from 200 K in the undoped compound down to 100 K approaching the solubility limit of La. Despite up to ~30% La substitution, the persistence of magnetic order and lack of any signature of superconductivity above 10 K present a contrasting phase diagram to that of Ca1-xLaxFe2As2, indicating that the suppression of magnetic order is necessary to induce the high-temperature superconducting phase observed in Ca1-xLaxFe2As2.

Affiliated with

Also associated with

No associations

Rating

Rare earth substitution in lattice-tuned Sr0.3Ca0.7Fe2As2 solid solutions 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 Rare earth substitution in lattice-tuned Sr0.3Ca0.7Fe2As2 solid solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rare earth substitution in lattice-tuned Sr0.3Ca0.7Fe2As2 solid solutions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-213863