March 3, 2026Open Access

A Concept and Preparation of Disilicide Slurry for A Possible Detection of Chirality–Induced Spin Transport

Key Points

The chiral slurry demonstrates notable changes in transverse voltage responses, suggesting efficient spin-charge interconversion.
As silver paste weight increases, transverse signals decrease, indicating its role in controlling slurry resistivity.
Analysis focused on how niobium disilicide powder mixed with conductive paste impacts electrical transport properties.
Findings may enable the exploration of chirality-induced effects in future experiments with chiral powders.

Abstract

A concept of chiral slurry for a possible detection of spin-charge interconversion phenomena is presented. Here slurry was made by mixing niobium disilicide NbSi2 powders with additive conductive paste in an organic solvent. A systematic study has been performed to examine how the increase in the weight percentage of silver paste in the NbSi2 slurry influences the electrical transport properties. It was found that the samples coated with the NbSi2 slurry exhibited longitudinal and transverse voltage responses. Importantly, the transverse signal decreases monotonically as the silver weight percentage increases in the slurry. The obtained data support that the silver paste is useful as a conductive auxiliary for controlling the slurry resistivity and transverse voltage signals in printable devices. This work provides a preliminary and essential foundation for investigating the intrinsic chirality-induced spin selectivity effect in chirality-controlled powders in the future experiments.

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