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This is a Experimental Study study.

September 28, 2025Open Access

Robust Anisotropic Spin Hall Effect in Rutile RuO2

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This study reveals a negative spin Hall angle in RuO2, suggesting a new angle on altermagnetic properties.

The study shows a robust and anisotropic spin Hall effect in RuO2 with distinct voltage ratios for different orientations.
A notable finding includes a negative spin Hall angle in RuO2, contrasting previous reports on ferromagnetic metals.
Utilizing various fabrication methods, including sputtering and molecular-beam epitaxy, ensures the results are consistent across films.
These insights significantly advance the understanding of spin-to-charge conversions in materials with low crystal symmetries.

Wang et al. (2025) studied this question.

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