Ultra-thin lithium aluminate spinel ferrite films with perpendicular magnetic anisotropy and low damping

XY Zheng, S Channa, LJ Riddiford, JJ Wisser… - Nature …, 2023 - nature.com
Ultra-thin films of low damping ferromagnetic insulators with perpendicular magnetic
anisotropy have been identified as critical to advancing spin-based electronics by …

[HTML][HTML] Ferrimagnetic insulators for spintronics: Beyond garnets

S Emori, P Li - Journal of Applied Physics, 2021 - pubs.aip.org
Ferrimagnetic insulators have gained much attention as material platforms with efficient
magnetization dynamics. To date, epitaxial iron garnet thin films are the most widely used …

Understanding signatures of emergent magnetism in topological insulator/ferrite bilayers

LJ Riddiford, AJ Grutter, T Pillsbury, M Stanley… - Physical review …, 2022 - APS
Magnetic insulator-topological insulator heterostructures have been studied in search of
chiral edge states via proximity induced magnetism in the topological insulator, but these …

Anisotropic magnon spin transport in ultrathin spinel ferrite thin films─ evidence for anisotropy in exchange stiffness

R Li, P Li, D Yi, LJ Riddiford, Y Chai, Y Suzuki… - Nano Letters, 2022 - ACS Publications
Magnon-mediated spin flow in magnetically ordered insulators enables long-distance spin-
based information transport with low dissipation. In the materials studied to date, no …

Emergent Magnonic Materials: Challenges and Opportunities

SS Gaur, EE Marinero - Materials, 2023 - mdpi.com
Advances in information technology are hindered by energy dissipation from Joule losses
associated with charge transport. In contrast, the process of information based on spin …

Charge-spin interconversion in epitaxial Pt probed by spin-orbit torques in a magnetic insulator

P Li, LJ Riddiford, C Bi, JJ Wisser, XQ Sun… - Physical Review …, 2021 - APS
We measure spin-orbit torques (SOTs) in a model system of all-epitaxial ferrite/Pt bilayers to
gain insights into charge-spin interconversion in Pt. With negligible electronic conduction in …

A puzzling insensitivity of magnon spin diffusion to the presence of 180-degree domain walls

R Li, LJ Riddiford, Y Chai, M Dai, H Zhong, B Li… - Nature …, 2023 - nature.com
We present room-temperature measurements of magnon spin diffusion in epitaxial
ferrimagnetic insulator MgAl0. 5Fe1. 5O4 (MAFO) thin films near zero applied magnetic field …

[HTML][HTML] Ultra-low magnetic damping in epitaxial Li0. 5Fe2. 5O4 thin films

XY Zheng, LJ Riddiford, JJ Wisser, S Emori… - Applied Physics …, 2020 - pubs.aip.org
The realization of more energy efficient nanomagnetic information devices relies on the
existence of magnetic insulators capable of supporting pure spin currents in the absence of …

[HTML][HTML] The role of iron in magnetic damping of Mg (Al, Fe) 2O4 spinel ferrite thin films

JJ Wisser, LJ Riddiford, A Altman, P Li, S Emori… - Applied Physics …, 2020 - pubs.aip.org
We have investigated magnesium aluminum ferrite thin films with a range of iron
concentrations and identified the optimal iron content to obtain high crystalline quality thin …

Unveiling and Optimizing Interface Properties of NiFe2O4/BaTiO3 Heterostructures

H Lin, C Mocuta, R Arras, C Blaess… - ACS Applied …, 2024 - ACS Publications
In this study, we investigate the properties, with a special focus on the magnetic attributes, of
NiFe2O4 (NFO)/BaTiO3 (BTO) multiferroic heterostructures, examining individual layer …