Exceptional low-temperature thermoelectric performance and spintronic properties of quaternary Heusler alloys LiXFeSb (X = Ba, Sr)Abhinav Nag, Anuja Kumari, Vaneet Kumar and Jagdish KumarEur. Phys. J. B, 99 1 (2026) 5DOI: https://doi.org/10.1140/epjb/s10051-025-01113-y