High temperature grain boundary resistance in Yb 14 (Mg,Mn)Sb 11 thermoelectrics

Journal of Materials Chemistry A 2026 Open access

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Authors: Duncan Zavanelli, Eleonora Isotta, Florian Alexander Busch, Siyuan Zhang, Christina Scheu, Sabah K. Bux, G. Jeffrey Snyder
DOI: 10.1039/d5ta09385f
Cited by: 2
References: 56

Abstract

Grain boundary resistance was found to limit thermoelectric performance in Yb 14 MgSb 11 from room temperature to 1200 K. No similar resistance was observed in Yb 14 MnSb 11 , demonstrating the importance of composition in engineering boundary behavior.

Fields of Study & Subjects

Advanced Thermoelectric Materials and Devices Rare-earth and actinide compounds Heusler alloys: electronic and magnetic properties

Publication details

Journal / source
Journal of Materials Chemistry A
Publisher
Royal Society of Chemistry (RSC)
Volume
14
Issue
19
Pages
11284–11293
Publication date
1 January 2026
Language
EN