Structure symmetry determination and magnetic evolution inSr2Ir1−xRhxO4

2015/10/26 by Feng Ye, Xiaoping Wang, Christina Hoffmann +8 · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Chemistry #Condensed matter physics #Crystal structure #Crystallography #Doping #Magnetic and transport properties of perovskites and related materials #Magnetic moment #Neutron diffraction #Physics #Physics of Superconductivity and Magnetism #Tetragonal crystal system #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.92.201112

published as Phys. Rev. B 92, 201112(R), 2015 · Accepted for publication in Phys. Rev. B

arxiv created 2015/10/26 · openalex publication_date 2015/11/23 · arxiv updated 2015/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

We use single-crystal neutron diffraction to determine the crystal structure symmetry and the magnetic evolution in the rhodium-doped iridates Sr₂Ir_1\ensuremath-xRh_xO₄ (0\ensuremath≤x\ensuremath≤0.16). Throughout this doping range, the crystal structure retains a tetragonal symmetry (space group I4₁/a) with two distinct magnetic Ir sites in the unit cell forming staggered IrO₆ rotation. Upon Rh doping, the magnetic order is suppressed and the magnetic moment of Ir⁴⁺ is reduced from 0.21\ensuremathμ_B/Ir for x=0 to 0.18\ensuremathμ_B/Ir for x=0.12. The magnetic structure at x=0.12 is different from that of the parent compound, while the moments remain in the basal plane.

Citations

• Dimensionality-Controlled Insulator-Metal Transition and Correlated Metallic State in5dTransition Metal OxidesSrn+1IrnO3n+1(n=1, 2, and∞)
• Recent advances in magnetic structure determination by neutron powder diffraction

Cited by

• Three-dimensional stacking of canted antiferromagnetism and pseudospin current in undoped Sr2IrO4: Symmetry analysis and microscopic model realization