Transfer of magnetic order and anisotropy through epitaxial integration of 3$d$ and 4$f$ spin systems

Abstract

Resonant x-ray scattering at the Dy $M_5$ and Ni $L_3$ absorption edges was used to probe the temperature and magnetic field dependence of magnetic order in epitaxial LaNiO${}_3$-DyScO${}_3$ superlattices. For superlattices with 2 unit cell thick LaNiO${}_3$ layers, a commensurate spiral state develops in the Ni spin system below 100 K. Upon cooling below $T_{ind}=18$ K, Dy-Ni exchange interactions across the LaNiO${}_3$-DyScO${}_3$ interfaces induce collinear magnetic order of interfacial Dy moments as well as a reorientation of the Ni spins to a direction dictated by the strong magneto-crystalline anisotropy of Dy. This transition is reversible by an external magnetic field of 3 T. Tailored exchange interactions between rare-earth and transition-metal ions thus open up new perspectives for the manipulation of spin structures in metal-oxide heterostructures and devices.

arXiv commentPRL, in press

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Cited by in corpus (7)

• Magnetic ground state of the Ising-like antiferromagnet DyScO${}_3$
• Complex magnetic order in nickelate slabs
• Magnetism at iridate/manganite interface: influence of strong spin-orbit interaction
• Control of the metal-insulator transition in NdNiO${}_3$ thin films through the interplay between structural and electronic properties
• Bootstrapped Dimensional Crossover of a Spin Density Wave
• Slow spin dynamics and quantum tunneling of magnetization in the dipolar antiferromagnet DyScO${}_3$
• Imprint of charge and oxygen orders on Dy ions in DyBa${}_2$Cu${}_3$O${}_{6+x}$ thin films probed by resonant x-ray scattering