A. Ardenghi

activity

20232025

collaborators

3 papers

physics.optics2025

Spectral tuning of hyperbolic shear polaritons in monoclinic gallium oxide via isotopic substitution

Giulia Carini, Mohit Pradhan, Elena Gelzinyte +26

Hyperbolic phonon polaritons - hybridized modes arising from the ultrastrong coupling of infrared light to strongly anisotropic lattice vibrations in uniaxial or biaxial polar crys…

cond-mat.mtrl-sci2024

Etching of elemental layers in oxide molecular beam epitaxy by O2-assisted formation and evaporation of their volatile suboxide: The examples of Ga and Ge

Wenshan Chen, Kingsley Egbo, Huaide Zhang +2

The delivery of an elemental cation flux to the substrate surface in the oxide molecular beam epitaxy (MBE) chamber has been utilized not only for the epitaxial growth of oxide thi…

physics.app-ph2023

Phase-selective growth of $κ$ - vs $β$ -Ga $_{2}$ O $_{3}$ and (In $_{x}$ Ga $_{1 - x}$ ) $_{2}$ O $_{3}$ by In-mediated metal exchange catalysis in plasma-assisted molecular beam epitaxy

A. Ardenghi, O. Bierwagen, J. Lähnemann +4

Its piezo- and potentially ferroelectric properties make the metastable kappa polymorph of Ga $_{2}$ O $_{3}$ an interesting material for multiple applications, while In-incorporation int…

Spectral tuning of hyperbolic shear polaritons in monoclinic gallium oxide via isotopic substitution

Etching of elemental layers in oxide molecular beam epitaxy by O2-assisted formation and evaporation of their volatile suboxide: The examples of Ga and Ge

Phase-selective growth of κ- vs β-Ga2​O3​ and (Inx​Ga1−x​)2​O3​ by In-mediated metal exchange catalysis in plasma-assisted molecular beam epitaxy

Phase-selective growth of $κ$ - vs $β$ -Ga $_{2}$ O $_{3}$ and (In $_{x}$ Ga $_{1 - x}$ ) $_{2}$ O $_{3}$ by In-mediated metal exchange catalysis in plasma-assisted molecular beam epitaxy