ISIS Data Journal

The archive for ISIS research data


RB1220146

Investigation title: Study of low dynamics in the normal phase of iron based superconductors.

Release date: Fri Oct 16 08:53:31 BST 2015

Creator: Professor Pietro Carretta
Creator: Dr Lucia Bossoni
Creator: Mr Jay Rainey

DOI: 10.5286/ISIS.E.24089641

Date of Experiment: Sun Oct 14 11:24:54 BST 2012

Publisher: STFC ISIS Facility

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Pietro Carretta et al; (2012): 1220146, STFC ISIS Facility, doi:10.5286/ISIS.E.24089641

Abstract

Since the discovery of the iron-pnictides superconductors most of the efforts has been devoted to the study of the fundamental questions concerning the coexistence of magnetism with superconductivity and the mixed phase. Nevertheless there are new phenomena that have risen in Cobalt and Rhodium-doped 122 single crystals: very recent 75As NMR measurements have evidenced that, in the normal phase, a slow dynamics is responsible for an activated behaviour of the spin-spin relaxation rate 1/T2. The physical origin of such a phenomenon is still debated, and we wish to study it by muSR, to compare and complete our NMR measurements, with another local probe technique. The understanding of such an effect may shed light on the comprehension of the normal phase of these systems, where new exotic types of order, like the nematic one, have been suggested.


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