Ion transport mechanism in anhydrous lithium thiocyanate LiSCN part III: charge carrier interactions in the premelting regime

Abstract

In lithium thiocyanate Li(SCN), the temperature regime below the melting point (274 °C) is characterized by excess conductivities over the usual Arrhenius behavior (premelting regime). Here, the Schottky defect pair...

Ion transport mechanism in anhydrous lithium thiocyanate LiSCN part II: frequency dependence and slow jump relaxation

“…6) accompanied by the lattice expansion (Fig. 1 in Part III), 37 especially in b direction ( i.e. ions have more space and can move more freely).…”

Ion transport mechanism in anhydrous lithium thiocyanate LiSCN Part I: ionic conductivity and defect chemistry

“…Although the highly polarizable anion facilitates defect formation, its very asymmetric interaction of sulfur and nitrogen with Li + cations hinders the migration of mobile defects, which renders the material a poor conductor. More details about this impact as well as the defect chemistry close to the melting point will be given in separate publications (Part II 40 and III 41 ).…”

“…† In Part II of this series of publications we discuss the frequency dependence of the ion conductivity in Li(SCN), 40 and Part III reports on the defect chemistry in the premelting regime. 41…”