# Finite Temperature Dynamics of Spin Solitons with Applications in Thermocouples and Refrigerators

Source: [Finite Temperature Dynamics of Spin Solitons with Applications in Thermocouples and Refrigerators](<https://www.sota2.com/research/paper/68fa43fc1e209131ce90dcf4>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-25T04:34:53.327Z

Authors: Chaofan Gong

Published: 2023-04-13T15:21:40.000Z

## Abstract

The exploitation of spin Berry phases to generate emergent fields for producing miniaturized and high-quality inductors has enjoyed considerable popularity among proponents of quantum technologies \[Nature 586, 202 (2020)}\]. Inspired by this breakthrough, we extend its mechanism to spin thermoelectrics by probing responses of ferrimagnetic domain walls (DWs) to thermal gradients. Similarly, voltages here stem from DW-spin collective motion, in contrast to normal electron transport phenomena. We further develop finite-temperature dynamics to investigate thermoelectric figures of merit and attribute corresponding quantum superiority to ultrafast spin evolution of ferrimagnetism with tunable non-Abelian phases. We propose a more likely cause of DW motion towards hot or cold regions (contrary to conclusions of previous reports) and verify existence of efficient magnon-momentum transfers. These findings deepen our understanding of heat-driven DW kinetics and suggest profitable new directions in an emerging realm of spincaloritronics.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2304.06608>)

[PDF](<https://arxiv.org/pdf/2304.06608.pdf>)