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Thermal stability and phase transformation of $\alpha$-, $\kappa(\epsilon)$-, and $\gamma$-Ga$_2$O$_3$ thin films to $\beta$-Ga$_2$O$_3$ under various ambient conditions
J. Tang, K. Jiang, P. Tseng, R. C. Kurchin, L. M. Porter, R. F. Davis
https://arxiv.org/abs/2405.00299

Thermal stability and phase transformation of $α$-, $κ(ε)$-, and $γ$-Ga$_2$O$_3$ thin films to $β$-Ga$_2$O$_3$ under various ambient conditions
Phase transitions in metastable $α$-, $κ(ε)$-, and $γ$-Ga$_2$O$_3$ films to thermodynamically stable $β$-Ga$_2$O$_3$ during annealing in air, N$_2$, and vacuum have been systematically investigated via in-situ high-temperature X-ray diffraction and scanning electron microscopy. These respective polymorphs exhibited thermal stability to around 471-525$^\circ$C, 773-825$^\circ$C, and 490-575$^\circ$C before transforming into $β$-Ga$_2$O$_3$, across all tested ambient conditions. Particular …

Influence ScN protective thin layer on the superconducting properties of ultrathin NbN films
N. V. Porokhov, A. A. Anikanov, A. P. Sirotina, E. A. Pershina, A. A. Shibalova, M. V. Shibalov, G. D. Diudbin, A. M. Mumlyakov, I. V. Trofimov, N. A. Vovk, M. A. Tarkhov
https://arxiv.org/abs/2404.17827

Influence ScN protective thin layer on the superconducting properties of ultrathin NbN films
The present study delves into exploring the impact of a thin protective layer of scandium nitride (ScN) on the superconductive properties of thin films of niobium nitride (NbN) generated through reactive magnetron deposition. This is the first time such an investigation has been carried out. The article offers a comprehensive investigation of the morphological, microstructural, and electrophysical features of thin films that have undergone high-temperature annealing in an oxygen-rich environmen…

This https://arxiv.org/abs/2403.02599 has been replaced.
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Comparative analysis of diverse methodologies for portfolio optimization leveraging quantum annealing techniques
Portfolio optimization (PO) is extensively employed in financial services to assist in achieving investment objectives. By providing an optimal asset allocation, PO effectively balances the risk and returns associated with investments. However, it is important to note that as the number of involved assets and constraints increases, the portfolio optimization problem can become increasingly difficult to solve, falling into the category of NP-hard problems. In such scenarios, classical algorithms…

This https://arxiv.org/abs/2308.00412 has been replaced.
initial toot: https://mastoxiv.page/@a…

Crystallization Dynamics of Amorphous Yttrium Iron Garnet Thin Films
Yttrium iron garnet (YIG) is a prototypical material in spintronics due to its exceptional magnetic properties. To exploit these properties high quality thin films need to be manufactured. Deposition techniques like sputter deposition or pulsed laser deposition at ambient temperature produce amorphous films, which need a post annealing step to induce crystallization. However, not much is known about the exact dynamics of the formation of crystalline YIG out of the amorphous phase. Here, we cond…

This https://arxiv.org/abs/2304.10132 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Efficient activation of telecom emitters in silicon upon ns pulsed laser annealing
The recent demonstration of optically active telecom emitters makes silicon a compelling candidate for solid state quantum photonic platforms. Particularly fabrication of the G center has been demonstrated in carbon-rich silicon upon conventional thermal annealing. However, the high-yield controlled fabrication of these emitters at the wafer-scale still requires the identification of a suitable thermodynamic pathway enabling its activation following ion implantation. Here we demonstrate the eff…