High-Entropy Materials (HEM)
The High-Entropy Materials group works on the comprehensive understanding of the high-entropy concept and on the utilization of high entropy materials (HEM) for different applications. Due to the versatility of HEM regarding composition and the connected structure/property relationships, a multitude of different areas of applications is conceivable.
Besides general investigations about the high-entropy concept itself and how to predict propterties in HEM, more application oriented topics are in our focus of interest and presented more in detail on the respective topic pages below. They include applications in electronic devices and energy storage, catalysis, band structure tailoring, and mangetism, as well as method development of high-throughput synthesis and analysis.
Our Research on High Entropy Materials

Investigating HEM structures, understanding the theoretical background, and developing new synthesis routes.
General Features
Application of HEMs for energy storage materials, electrolytes and utilization as catalysts.
Electrochemistry of HEM
High-throuput methods for HEM using automated synthesis and analysis in combination with machine learning.
HTSA
Exploring the magento-electronic phase space of HEMs utilizing chemical disorder and strain engineering
Mangeto-ElectronicsSelected Publications
Stenzel, D.; Issac, I.; Wang, K.; Azmi, R.; Singh, R.; Jeong, J.; Najib, S.; Bhattacharya, S. S.; Hahn, H.; Brezesinski, T.; Schweidler, S.; Breitung, B.
2020. Inorganic chemistry, 60 (1), 115–123. doi:10.1021/acs.inorgchem.0c02501
Jeong, J.; Singaraju, S. A.; Aghassi‐Hagmann, J.; Hahn, H.; Breitung, B.
2020. ChemElectroChem, 7 (13), 2735–2739. doi:10.1002/celc.202000305
Wang, J.; Stenzel, D.; Azmi, R.; Najib, S.; Wang, K.; Jeong, J.; Sarkar, A.; Wang, Q.; Sukkurji, P. A.; Bergfeldt, T.; Botros, M.; Maibach, J.; Hahn, H.; Brezesinski, T.; Breitung, B.
2020. Electrochem, 1 (1), 60–74. doi:10.3390/electrochem1010007
Wang, J.; Cui, Y.; Wang, Q.; Wang, K.; Huang, X.; Stenzel, D.; Sarkar, A.; Azmi, R.; Bergfeldt, T.; Bhattacharya, S. S.; Kruk, R.; Hahn, H.; Schweidler, S.; Brezesinski, T.; Breitung, B.
2020. Scientific reports, 10, Art.-Nr.: 18430. doi:10.1038/s41598-020-75134-1
Lin, L.; Wang, K.; Azmi, R.; Wang, J.; Sarkar, A.; Botros, M.; Najib, S.; Cui, Y.; Stenzel, D.; Anitha Sukkurji, P.; Wang, Q.; Hahn, H.; Schweidler, S.; Breitung, B.
2020. Journal of materials science, 55, 16879–16889. doi:10.1007/s10853-020-05183-4
Sarkar, A.; Breitung, B.; Hahn, H.
2020. Scripta materialia, 187, 43–48. doi:10.1016/j.scriptamat.2020.05.019
Breitung, B.; Wang, Q.; Schiele, A.; Tripković, Đ.; Sarkar, A.; Velasco, L.; Wang, D.; Bhattacharya, S. S.; Hahn, H.; Brezesinski, T.
2020. Batteries & supercaps, 3 (4), 361–369. doi:10.1002/batt.202000010
Chellali, M. R.; Sarkar, A.; Nandam, S. H.; Bhattacharya, S. S.; Breitung, B.; Hahn, H.; Velasco, L.
2019. Scripta materialia, 166, 58–63. doi:10.1016/j.scriptamat.2019.02.039
Sarkar, A.; Wang, Q.; Schiele, A.; Chellali, M. R.; Bhattacharya, S. S.; Wang, D.; Brezesinski, T.; Hahn, H.; Velasco, L.; Breitung, B.
2019. Advanced materials, 1806236. doi:10.1002/adma.201806236
Wang, Q.; Sarkar, A.; Li, Z.; Lu, Y.; Velasco, L.; Bhattacharya, S. S.; Brezesinski, T.; Hahn, H.; Breitung, B.
2019. Electrochemistry communications, 100, 121–125. doi:10.1016/j.elecom.2019.02.001
Sarkar, A.; Velasco, L.; Wang, D.; Wang, Q.; Talasila, G.; de Biasi, L.; Kübel, C.; Brezesinski, T.; Bhattacharya, S. S.; Hahn, H.; Breitung, B.
2018. Nature Communications, 9 (1), Article number: 3400. doi:10.1038/s41467-018-05774-5