Turn-On of Current-Induced Spin Torque Upon Non-collinear Antiferromagnetic Ordering in Delafossite PdCrO<sub>2</sub>.
basic_science · Level V
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- Record sourced from PubMed, PMID 41190804.
- Also identified by DOI 10.1002/adma.202502670.
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Abstract
Measurements of the current-induced spin torque produced by the delafossite antiferromagnet PdCrO<sub>2</sub> and acting on an adjacent ferromagnetic permalloy layer are reported. The spin torque increases strongly as the temperature is reduced through the Néel temperature, when the PdCrO<sub>2</sub> transitions from a paramagnetic phase to a non-collinear antiferromagnetic state. This result is qualitatively consistent with density functional theory calculations regarding how spin-current generation changes upon antiferromagnetic ordering in PdCrO<sub>2</sub>.