2014/06/03 by S. Raymond, Jonathan Buhot, J. Buhot +4 · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Antiferromagnetism #Chemistry #Condensed matter physics #Crystal structure #Crystallography #Iron-based superconductors research #Neutron diffraction #Order (exchange) #Phase (matter) #Phase diagram #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Rare-earth and actinide compounds #Superconductivity #Tetragonal crystal system #Type (biology) #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.90.014423
5 pages, 5 figures, submitted to Phys. Rev. B
arxiv created 2014/06/03 · openalex publication_date 2014/07/18 · arxiv updated 2015/06/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report neutron diffraction experiments performed in the tetragonal antiferromagnetic heavy fermion system CeRhIn_5\ensuremath-xSnx in its (x,T) phase diagram up to the vicinity of the critical concentration xc \ensuremath≈0.40, where long range magnetic order is suppressed. The propagation vector of the magnetic structure is found to be kIC=(1/2,1/2,kl) with kl increasing from kl=0.298 to kl=0.410 when x increases from x=0 to x=0.26. Surprisingly, for x=0.30, the order has changed drastically and a commensurate antiferromagnetism with kC=(1/2,1/2,0) is found. This concentration is located in the proximity of the quantum critical point where superconductivity is expected.