# Spincaloritronic measurements: a round robin comparison of the longitudinal spin Seebeck effect

## TL;DR

This paper presents a round robin comparison of spin Seebeck effect measurements across multiple labs, revealing reproducibility issues and emphasizing the need for standardized measurement protocols in spin caloritronics.

## Contribution

It provides a collaborative assessment of measurement variability in spin Seebeck effect experiments and explores systematic effects to improve reproducibility.

## Key findings

- Reproducibility problems in spin Seebeck measurements identified
- Systematic effects influence measurement consistency
- Call for standardized measurement methods in spin caloritronics

## Abstract

The rising field of spin caloritronics focuses on the interactions between spin and heat currents in a magnetic material; the observation of the spin Seebeck effect opened the route to this branch of research. This paper reports the results of a round robin test performed by five partners on a single device highlighting the reproducibility problems related to the measurements of the spin Seebeck coefficient, the quantity that describes the strength of the spin Seebeck effect. This work stimulated the search for more reproducible measurement methods through the analysis of the systematic effects.