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1. Homoepitaxial β -Ga2O3 transparent conducting oxide with conductivity σ = 2323 S cm−1

   https://doi.org/10.1063/5.0062056  

   Jeon, Hyung_Min; Leedy, Kevin_D; Look, David_C; Chang, Celesta_S; Muller, David_A; Badescu, Stefan_C; Vasilyev, Vladimir; Brown, Jeff_L; Green, Andrew_J; Chabak, Kelson_D (October 2021, APL Materials)

   Conductive homoepitaxial Si-doped β-Ga2O3 films were fabricated by pulsed laser deposition with an as-deposited 2323 S cm−1 conductivity (resistivity = 4.3 × 10−4 Ω-cm, carrier concentration = 2.24 × 1020 cm−3, mobility = 64.5 cm2 V−1 s−1, and electrical activation efficiency = 77%). High quality homoepitaxial films deposited on commercial (010) Fe-compensated β-Ga2O substrates were determined by high-resolution transmission electron microscopy and x-ray diffraction. The β-Ga2O3 films have ∼70% transparency from 3.7 eV (335 nm) to 0.56 eV (2214 nm). The combination of high conductivity and transparency offers promise for numerous ultrawide bandgap electronics and optoelectronic applications. 

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2. B-meson semileptonic form factors on (2+1+1)-flavor HISQ ensembles

   Gelzer, Z.; DeTar, C.; El-Khadra, A.X.; Gámiz, E.; Gottlieb, S.; Kronfeld, A.; Liu, Y.; Meurice, Y.; Simone, J.N.; Toussaint, D.; et al (May 2020, 37th International Symposium on Lattice Field Theory (Lattice 2019))
3. Aqueous Oxidation of Biomass-Burning Furans by Singlet Molecular Oxygen ( ¹ O ₂ *)

   https://doi.org/10.1021/acs.est.4c10778  

   Arciva, Stephanie; Zhou, Yuejun; Jiang, Wenqing; Ross, Alicia; Zhang, Qi; Anastasio, Cort (June 2025, Environmental Science & Technology)
4. Cryogenic packaging of nanophotonic devices with a low coupling loss < 1 dB

   https://doi.org/10.1063/5.0170324  

   Zeng, Beibei; De-Eknamkul, Chawina; Assumpcao, Daniel; Renaud, Dylan; Wang, Zhuoxian; Riedel, Daniel; Ha, Jeonghoon; Robens, Carsten; Levonian, David; Lukin, Mikhail; et al (October 2023, Applied Physics Letters)

   Robust, low-loss photonic packaging of on-chip nanophotonic circuits is a key enabling technology for the deployment of integrated photonics in a variety of classical and quantum technologies including optical communications and quantum communications, sensing, and transduction. To date, no process has been established that enables permanent, broadband, and cryogenically compatible coupling with sub-dB losses from optical fibers to nanophotonic circuits. Here, we report a technique for reproducibly generating a permanently packaged interface between a tapered optical fiber and nanophotonic devices on diamond with a record-low coupling loss <1 dB per facet at near-infrared wavelengths (∼730 nm) that remains stable from 300 K to 30 mK. We further demonstrate the compatibility of this technique with etched lithium niobate on insulator waveguides. The technique lifts performance limitations imposed by scattering as light transfers between photonic devices and optical fibers, paving the way for scalable integration of photonic technologies at both room and cryogenic temperatures. 

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5. Multi-frequency General Relativistic Radiation-hydrodynamics with M ₁ Closure

   https://doi.org/10.3847/1538-4357/abab9c  

   Anninos, Peter; Fragile, P. Chris (September 2020, The Astrophysical Journal)

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