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Questaal
Proximitized materials
Spin-orbit torque: Co/Pt,
thickness dependence,
Mn2Au/HM,
intermixing.
Spin transport: TAMR,
Fe/GaAs,
spin injection,
SML,
circuit theory,
spin diffusion in Pt,
exchange-driven SHE.
Magnetic anisotropy: (Fe-Co)2B [1],
(Fe-Co)2B [2],
MnPt,
Fe2P,
CuMnAs,
Cr2O3,
MnPt/MgO
.
Magnetic materials: EuO,
Fe8N2,
Cr2O3,
Fe2TeO6,
NiMnSb,
Fe1-xMnxPt,
Co2MnSi.
Ferropnictides: [1],
[2],
[3].
Phase transitions: Cr2O3 (0001) surface,
Gd:EuO.
Magnetoelectrics: EB control,
boundary,
imaging,
switching.
Spin fluctuations and resistivity: LSF,
Fe & Ni,
Gd-Tm,
DLM,
saturation.
Tunnel junctions: Co/vacuum,
Co/Al2O3,
Fe/MgO,
Co/SrTiO3,
review.
Alloys: CLDM,
Fe-Au.
News and updates
- Direct and indirect spin current generation and spin-orbit torques in ferromagnet/nonmagnet/ferromagnet trilayers
- Exchange-driven spin Hall effect in anisotropic ferromagnets
- Breakdown of the drift-diffusion model for transverse spin transport in a disordered Pt film
Highlights
- Online SPICE-SPIN+X Seminar on spin transport and spin-orbit torque
- Spin-orbit torque in metallic bilayers and trilayers from first principles (invited talk at the ICQMT-2022 conference)
- Proximitized Materials in Materials Today
- Theory of spin loss at metallic interfaces (invited talk at the APS March Meeting, see also this paper)
- Effects of thermal spin fluctuations on the electronic properties of itinerant magnets (talk at SPICE-Workshop on Computational Quantum Magnetism, Mainz, May 2015)
- Exotic behavior of magnetocrystalline anisotropy in (Fe1-xCox)2B (PRL 2015, APL 2015) and Mn1-xPt1+x (PRM 2018) alloys
- Construction of magnetic phase diagrams in alloys from first principles (PRL 2015)
- Microscopic, first-principles model of strain-induced interaction in concentrated size-mismatched alloys (PRB 2014)
- Biquadratic interaction in ferropnictides (Nature Physics 2011)
- Robust isothermal electric control of exchange bias at room temperature (Nature Materials 2010, PRL 2010)
Current research projects
- Designing materials for next-generation spintronic devices
- A high-throughput computational and experimental approach to the design of unconventional magnets (DOE EPSCoR DE-SC0024284)
- First-principles studies of spin-orbit torque and magnetoresistance in magnetic nanostructures