Glassy, ceramic, and crystalline lithium aluminosilicates: charge transport and low-temperature specific heat studies

Spin relaxation and ultra-slow Li motion in an aluminosilicate glass ceramic

“…(13) with an energy barrier of E ¼ 0.61 eV. This value is in agreement with that from measurements of the electrical conductivity s which yielded E s ¼ 0.67 eV [13]. It is instructive to compare the energy barriers also with those determined using the SET for a b-spodumene crystal (0.98 eV) and for glassy spodumene (0.58 eV) [16].…”

“…This composition ensures that near room temperature the positive thermal expansion of the glassy host compensates the negative thermal expansion of the homogeneously embedded crystalline grains [12]. The Li + ion conductivity in Zerodur M and its precursor glass were studied previously [13,14]. Zerodur M is characterized by a [Al 3+ ]/[Si 4+ ] ratio of x ¼ 0.44.…”

Ion hopping in crystalline and glassy spodumeneLiAlSi2O6:Qi1, Rier2, Böhmer3 et al. 2005Phys. Rev. B

“…The solid line through the dielectric data reflects an Arrhenius law C = 0 exp͑−E / k B T͒ with an attempt frequency 0 =7ϫ 10 12 Hz and an energy barrier of 0.09 eV as deduced from previous dielectric investigations. 14 The correlation rates of the local motion obtained by NMR are smaller than those from the dielectric data of the polycrystalline material, to which the comparison has to be confined in the present case ͑see Fig. 3͒.…”

Solid-state Li NMR with applications to the translational dynamics in ion conductors

“…The label a indicates an amorphous modification. Zerodur M is an aluminosilicate-based glass ceramic, see, e.g., [528].…”