Magnetism and electrical transport in Y-doped layered iridate SrIrO
arXiv:2101.02699 · doi:10.1016/j.jmmm.2021.167749
Abstract
Here, we report an investigation of structural, magnetic and electronic properties in Y-doped layered iridate (SrY)IrO ( 0.1). The parent SrIrO is a well-studied spin-orbit coupling (SOC) induced insulator with an antiferromagnetic ground state. The Y-doping here equivalently acts for electron doping without altering the vital parameters such as, SOC and electron correlation. Experimental results show a minute change in structural parameters and an equivalent charge conversion from Ir to Ir. Unlike similarly other electron-doped system, the low temperature magnetic and electronic state in present series is minimally influenced. The charge conduction mechanism follows 2-dimensional hopping model in whole series. Magnetoresistance (MR) data show an interesting sign change with both temperature and magnetic field. The positive MR both at low temperature follows weak antilocalization behavior where the sign change in MR is believed to be caused by an interplay between SOC and magnetic moment.
12 pages, 8 figures
References in corpus (16)
- Mott Insulators in the Strong Spin-Orbit Coupling Limit: From Heisenberg to a Quantum Compass and Kitaev Models
- Novel Jeff = 1/2 Mott State Induced by Relativistic Spin-Orbit Coupling in Sr2IrO4
- Weak localisation magnetoresistance and valley symmetry in graphene
- Gate-Voltage Control of Chemical Potential and Weak Anti-localization in Bismuth Selenide
- Spin-Liquid State in the S = 1/2 Hyperkagome Antiferromagnet Na4Ir3O8
- Impurity effect on weak anti-localization in the topological insulator Bi2Te3
- The magnetic and crystal structures of Sr2IrO4: A neutron diffraction study
- Unconventional magnetic order on the hyperhoneycomb Kitaev lattice in -Li2IrO3: full solution via magnetic resonant x-ray diffraction
- Transport Properties of Topological Insulators: Band Bending, Bulk Metal-to-Insulator Transition, and Weak Anti-Localization
- Spin-orbit tuned metal-insulator transitions in single-crystal Sr2Ir1-xRhxO4 (0\leqx\leq1)
- Testing the validity of the strong spin-orbit-coupling limit for octahedrally coordinated iridates in a model system SrCuIrO
- Enhanced weak ferromagnetism and conductivity in hole-doped pyrochlore iridate Y2Ir2O7
- Effect of Cu substitution in Spin-Orbit Coupled SrIrCuO: Structure, magnetism and electronic properties
- Anomalous lattice contraction and emergent electronic phases in Bi-doped EuIrO
- Optical Signatures of Spin-Orbit Exciton in Bandwidth Controlled SrIrO Epitaxial Films via High-Concentration Ca and Ba Doping
- Structural evolution and electronic properties of (Sr1-xCax)2-yIrO4+z spin-orbit assisted insulators