S. Sanna

collaborators

5 papers

cond-mat.mtrl-sci2024

Ground- and excited-state properties of LiNb $_{1 - x}$ Ta $_{x}$ O $_{3}$ solid solutions

Felix Bernhardt, Florian A. Pfeiffer, Felix Schug +5

LiNb $_{1 - x}$ Ta $_{x}$ O $_{3}$ solid solutions are investigated from first principles and by optical spectroscopy. The ground- and excited-state properties of the solid solutions are mode…

cond-mat.mtrl-sci2024

Ferroelectric to paraelectric structural transition in LiTaO $_{3}$ and LiNbO $_{3}$

Felix Bernhardt, Leonard M. Verhoff, Nils A. SchÃ¤fer +13

The ferroelectric to paraelectric phase transition in LiTaO $_{3}$ and in pure as well as Mg doped LiNbO $_{3}$ is investigated theoretically by atomistic calculations in the framework o…

cond-mat.mtrl-sci2024

Lattice dynamics of LiNb $_{1-x}$ Ta $_{x}$ O $_{3}$ solid solutions: Theory and experiment

Felix Bernhardt, Soham Gharat, Alexander Kapp +8

Lithium niobate (LNO) and lithium tantalate (LTO) see widespread use in fundamental research and commercial technologies reaching from electronics over classical optics to integrat…

cond-mat.mtrl-sci2024

Phase Transformation in Lithium Niobate-Lithium Tantalate Solid Solutions (LiNb $_{1 - x}$ Ta $_{x}$ O $_{3}$ )

Fatima El Azzouzi, Detlef Klimm, Alexander Kapp +6

The investigation of the structural phase transition in the vicinity of the Curie temperature $T_{c}$ of LiNb $_{1 - x}$ Ta $_{x}$ O $_{3}$ crystals is motivated by the expected combination of…

cond-mat.mtrl-sci2024

Small electron polarons bound to interstitial tantalum defects in lithium tantalate

Anton Pfannstiel, Tobias Hehemann, Nils A. SchÃ¤fer +8

The absorption features of optically generated, short-lived small bound electron polarons are inspected in congruent lithium tantalate, $LiTaO_{3}$ (LT), in order to address th…

Ground- and excited-state properties of LiNb1−x​Tax​O3​ solid solutions

Ferroelectric to paraelectric structural transition in LiTaO3​ and LiNbO3​

Lattice dynamics of LiNb1-x​Tax​O3​ solid solutions: Theory and experiment

Phase Transformation in Lithium Niobate-Lithium Tantalate Solid Solutions (LiNb1−x​Tax​O3​)

Small electron polarons bound to interstitial tantalum defects in lithium tantalate

Ground- and excited-state properties of LiNb $_{1 - x}$ Ta $_{x}$ O $_{3}$ solid solutions

Ferroelectric to paraelectric structural transition in LiTaO $_{3}$ and LiNbO $_{3}$

Lattice dynamics of LiNb $_{1-x}$ Ta $_{x}$ O $_{3}$ solid solutions: Theory and experiment

Phase Transformation in Lithium Niobate-Lithium Tantalate Solid Solutions (LiNb $_{1 - x}$ Ta $_{x}$ O $_{3}$ )