Publications by authors named "Samridh Jaiswal"
Controlling magnetism by electric fields offers a highly attractive perspective for designing future generations of energy-efficient information technologies. Here, we demonstrate that the magnitude of current-induced spin-orbit torques in thin perpendicularly magnetized CoFeB films can be tuned and even increased by electric-field generated piezoelectric strain. Using theoretical calculations, we uncover that the subtle interplay of spin-orbit coupling, crystal symmetry, and orbital polarization is at the core of the observed strain dependence of spin-orbit torques.
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- Magnetic skyrmions can move quickly in thin films using specific torques, showing potential for advanced computing despite limited studies on their thermal effects.
- Thermally induced motion of skyrmions was explored in a custom low-pinning multilayer material, revealing that temperature greatly influences their dynamics.
- This motion can enhance probabilistic computing devices, and studying it may provide insights into soft-matter phenomena like thermally induced roughness.
Understanding the transfer of spin angular momentum is essential in modern magnetism research. A model case is the generation of magnons in magnetic insulators by heating an adjacent metal film. Here, we reveal the initial steps of this spin Seebeck effect with <27 fs time resolution using terahertz spectroscopy on bilayers of ferrimagnetic yttrium iron garnet and platinum.
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