Magnetism, hysteresis cycle, and Ir-substitution doping of Sr2CrIrO6 double perovskite: A Monte Carlo simulation

• Published in: Physics letters. A Vol. 380; no. 48; pp. 4075 - 4082
• Main Authors: El Rhazouani, O., El Khatabi, M., Zarhri, Z., Slassi, A., Benyoussef, A., El Kenz, A.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 16.12.2016
• Subjects: Ir-based double perovskite; Magnetic hysteresis; Magnetic properties; Monte Carlo simulation; Substitution doping; Ir-based double perovskite; Magnetic hysteresis; Substitution doping; Monte Carlo simulation; Magnetic properties
• ISSN: 0375-9601; 1873-2429
• DOI: 10.1016/j.physleta.2016.10.015

Iridium-based double perovskite (DP) Sr2CrIrO6 is expected to have the highest Curie temperatures (Tc) among all DPs and a high spin-polarization at room temperature, thanks to the more extended 5d orbitals of Ir, which makes it potential candidate in spintronic applications. Several publications have appeared in recent years documenting Ir-based double perovskites, but very few have explored the promising compound Sr2CrIrO6. In this paper, a Monte Carlo simulation has been carried out in the framework of Ising model to make an exploratory study of Sr2CrIrO6. Thermal magnetization, magnetic susceptibility, internal energy and specific heat have been studied. Effect of crystal field of Ir on the magnetic properties has been explored. Magnetic hysteresis cycle has been studied in relation to the exchange coupling values. Effects of Ir-substitution doping by Os “Sr2CrIrxOs1−xO6” and by Re “Sr2CrIrxRe1−xO6” (0.1≤x≤0.5) on the magnetic behavior have been investigated. •Monte Carlo simulation has been performed to study Sr2CrIrO6 double perovskite.•Effect of crystal field of Ir on the magnetic properties has been explored.•Magnetic hysteresis cycle has been studied regarding the exchange coupling values.•Effects of Ir-substitution doping by Os and by Re have been investigated.