The thermal expansion and electrical properties of Cu4Mn2X4 (X: S, Se, and Te) Valiev, L. M. ; Kerimov, I. G. ; Aliev, N. G. ; Abdurragimov, A. A. Abstract Publication: Physica Status Solidi Applied Research Pub Date: May 1976 DOI: 10.1002/pssa.2210350165 Bibcode: 1976PSSAR..35...85V