Bonding Heterogeneity and Nanoprecipitation on Substituting the Anionic Framework in Mg3Sb2 for p‐Type Zintl Thermoelectrics
Year: 2025
Type: article
Abstract: Zintl Thermoelectrics Designing Zintl compounds with complex structures and heavy elements enables bonding heterogeneity, inducing lattice anharmonicity and low thermal conductivity. In article number 2400632, Takao Mori and Nagendra Singh Chauhan explore alloying-driven bonding heterogeneity in α-Mg3(Sb, Bi)2, revealing local atomic ordering and heterogeneous interfaces in Mg3(Sb1−2xBixSnx)2. Alloying triggers partial phase transitions, with a cubic Mg2Sn nanophase emerging at x ≥ 0.1. Optimized nanocomposites achieve zT ∼ 0.25 at 673 K, highlighting the role of anionic sites in structural and functional properties.
Source: Small Structures
Authors: Nagendra Singh Chauhan, Takao Mori
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $4,110
OpenAlex ID: W4409152280