Robust Long Range Magnetic Correlation across Anti-phase Domain Boundaries in Sr${}_2$CrReO${}_6$

Abstract

Anti-site disorder is one of the most important issues that arises in synthesis of double perovskite for spintronic applications. Although it is known that anti-site disorder leads to a proliferation of structural defects, known as the anti-phase boundaries that separate ordered anti-phase domains in the sample, little is known about the magnetic correlation across these anti-phase boundaries on a microscopic level. Motivated by this, we report resonant elastic X-ray scattering study of room temperature magnetic and structural correlation in a thin-film sample of Sr${}_2$CrReO${}_6$, which has one of the highest ${\mathrm{T}}_{\mathrm{C}}$ among double perovskites. Structurally, we discovered existence of anti-phase nanodomains of $\sim$15~nm in the sample. Magnetically, the ordered moments are shown to lie perpendicular to the $c$ direction. Most remarkably, we found that the magnetic correlation length far exceeds the size of individual anti-phase nanodomains. Our results therefore provide conclusive proof for existence of robust magnetic correlation across the anti-phase boundaries in Sr${}_2$CrReO${}_6$.

arXiv comment5 page, 4 figures; Supplemental Materials upon request

References in corpus (10)

• Long range magnetic ordering in Na${}_2$IrO${}_3$
• Non-coplanar and counter-rotating incommensurate magnetic order stabilized by Kitaev interactions in $\gamma$-Li2IrO3
• On the origin of neutron magnetic scattering in anti-site disordered Sr2FeMoO6 double perovskites
• Robustness of basal-plane antiferromagnetic order and the $J_{eff}=1/2$ state in single-layer iridate spin-orbit Mott insulators
• Detection of multipolar orders in the spin-orbit-entangled 5d Mott insulator Ba2MgReO6
• X-ray magnetic circular dichroism study of Re 5d magnetism in Sr2CrReO6
• Determination of Hund's coupling in 5d Oxides using Resonant Inelastic X-ray Scattering
• Antisite Domains in Double Perovskite Ferromagnets: Impact on Magnetotransport and Half-metallicity
• Epitaxial growth and magnetic properties of Sr2CrReO6 thin films
• Neutron Scattering Investigation of Rhenium Orbital Ordering in $3d-5d$ Double Perovskite Ca${}_2$FeReO${}_6$

Cited by in corpus (3)

• Magnetic excitations in double perovskite iridates La${}_2$$M$IrO${}_6$ ($M$ = Co, Ni, and Zn) mediated by 3$d$-5$d$ hybridization
• Resonant inelastic X-ray scattering investigation of Hund's and spin-orbit coupling in $5d^2$ double perovskites
• Outstanding TC Enhancement in 5d-3d Y2NiIrO6 by Compression