Boosting the thermoelectric performance of Heusler compounds by band engineering

F Garmroudi, A Riss, M Parzer, N Reumann, H Müller… - Physical Review B, 2021 - APS
Linking the fundamental physics of band structure and scattering theory with macroscopic
features such as measured temperature dependencies of electronic and thermal transport is …

Anderson transition in stoichiometric Fe2VAl: high thermoelectric performance from impurity bands

F Garmroudi, M Parzer, A Riss, AV Ruban… - Nature …, 2022 - nature.com
Discovered more than 200 years ago in 1821, thermoelectricity is nowadays of global
interest as it enables direct interconversion of thermal and electrical energy via the …

[HTML][HTML] Dopant-segregation to grain boundaries controls electrical conductivity of n-type NbCo (Pt) Sn half-Heusler alloy mediating thermoelectric performance

T Luo, F Serrano-Sánchez, H Bishara, S Zhang… - Acta Materialia, 2021 - Elsevier
Science-driven design of future thermoelectric materials requires a deep understanding of
the fundamental relationships between microstructure and transport properties. Grain …

Structural stability and magnetic properties of Mn2FeAl alloy with a β-Mn structure

S Dash, AV Lukoyanov, D Mishra, UPM Rasi… - Journal of Magnetism …, 2020 - Elsevier
Abstract The synthesized Mn 2 FeAl alloys crystallize in a geometrically frustrated cubic β-
Mn structure (space group: P4 1 32) with an antiferromagnetic ordering whereas the …

[HTML][HTML] High solubility of Al and enhanced thermoelectric performance due to resonant states in Fe2VAlx

M Parzer, F Garmroudi, A Riss, S Khmelevskyi… - Applied Physics …, 2022 - pubs.aip.org
Recently, n-type Fe 2 VAl-based full-Heusler systems, exhibiting high thermoelectric power
factors, have sparked new interest in this material class for thermoelectric applications. In …

Discovery of triple half-Heusler Mg 2 VNi 3 Sb 3 with low thermal conductivity

K Imasato, P Sauerschnig, S Anand, T Ishida… - Journal of Materials …, 2022 - pubs.rsc.org
To expand and utilize the potential of intermetallic compounds, the importance of quaternary
half-Heusler (HH) compounds has attracted attention in the field of thermoelectrics and other …

Thermoelectric properties of Ru2TiGe Heusler phase

S Mondal, K Ghosh, R Ranganathan, E Alleno… - Journal of Alloys and …, 2023 - Elsevier
We report a study of structural, magnetic, heat capacity and thermoelectric properties of a Ru-
based Heusler alloy, Ru 2 TiGe. The magnetic measurements reveal that at higher …

The electronic pseudo band gap states and electronic transport of the full-Heusler compound Fe 2 VAl

B Hinterleitner, F Garmroudi, N Reumann… - Journal of Materials …, 2021 - pubs.rsc.org
For Fe2VAl the temperature-dependent Seebeck coefficient S (T) and electrical resistivity ρ
(T) were calculated within the framework of density functional theory (DFT). The DFT …

Ferromagnetically correlated clusters in semimetallic Heusler alloy and its thermoelectric properties

S Mondal, C Mazumdar, R Ranganathan, E Alleno… - Physical Review B, 2018 - APS
In this work, we report the structural, magnetic, electrical and thermal transport properties of
the Heusler-type alloy Ru 2 NbAl. From the detailed analysis of magnetization data, we infer …

Semiconducting Heusler Compounds beyond the Slater-Pauling Rule

M Parzer, F Garmroudi, A Riss, M Reticcioli… - PRX Energy, 2024 - APS
Heusler compounds with semiconducting properties represent an important class of
functional materials. Usually, research on these systems is guided by simple electron …