title: Temperature-induced abrupt volume inflation in the mixed-valence ternary Zintl phase Yb8Ge3Sb5.
abstract: The Zintl phase, Yb8Ge3Sb5 exhibits a complex lattice response and an abrupt negative thermal expansion below 15 K - subtle structural changes before and after the transition are consistent with temperature-induced electron transfer from (to) Yb 4f bands to (from) Sb 5p and Ge 4p bands.
authors.affiliation: School of Chemistry, University of Edinburgh, UK. serena.margadonna@ed.ac.uk
authors.forename: Serena
authors.initials: S
authors.lastname: Margadonna
authors.forename: Kosmas
authors.initials: K
authors.lastname: Prassides
authors.forename: Maria
authors.initials: M
authors.lastname: Chondroudi
authors.forename: James R
authors.initials: JR
authors.lastname: Salvador
authors.forename: Mercouri G
authors.initials: MG
authors.lastname: Kanatzidis