3 papers
cond-mat.mtrl-sci2024
Ferroelectric to paraelectric structural transition in LiTaO and LiNbO
Felix Bernhardt, Leonard M. Verhoff, Nils A. Schäfer +13
The ferroelectric to paraelectric phase transition in LiTaO and in pure as well as Mg doped LiNbO is investigated theoretically by atomistic calculations in the framework o…
cond-mat.mtrl-sci2024
Small electron polarons bound to interstitial tantalum defects in lithium tantalate
Anton Pfannstiel, Tobias Hehemann, Nils A. Schäfer +8
The absorption features of optically generated, short-lived small bound electron polarons are inspected in congruent lithium tantalate, (LT), in order to address th…
cond-mat.mtrl-sci2024
Influence of Li-stoichiometry on electrical and acoustic properties and temperature stability of Li(Nb,Ta)O solid solutions up to 900 °C
Ãva Tichy-Rács, Stepan Hurskyy, Uliana Yakhnevych +4
The current work is focused on the impact of the lithium stoichiometry on electrical conductivity, acoustic properties and high-temperature stability of single crystalline Li(Nb,Ta…