Atomic to nanoscale chemical fluctuations: The catalyst for enhanced thermoelectric performance in high-entropy materials.

ABSTRACT: High-entropy materials have expanded the frontier for discovering uncharted physicochemical properties. The phenomenon of chemical fluctuation is ubiquitous in high-entropy materials, yet its role in the thermoelectric field is often overlooked. Herein, we designed and synthesized a series of (Mg_0.94-nYb_0.26Sr_0.26Zn_m)(Mg_nCd_0.69Zn_0.69-mNa_x)(Sb_1.74Ca_0.26) samples characterized by ultrahigh configurational entropy. These samples exhibit a homogeneous single-phase structure at macroscopic and microscopic scales, yet display notable chemical fluctuations at the atomic to nanoscale. These fluctuations, along with the unusual atomic occupations, lead to

SUBMITTER: Wang J 

PROVIDER: S-EPMC11870071 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature