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1. Kinetics of the Topochemical Transformation of (PbSe) _m (TiSe ₂ ) _n (SnSe ₂ ) _m (TiSe ₂ ) _n to (Pb _0.5 Sn _0.5 Se) _m (TiSe ₂ ) _n

   https://doi.org/10.1021/jacs.8b10681  

   Sutherland, Duncan R.; Merrill, Devin R.; Ditto, Jeffrey; Moore, Daniel B.; Medlin, Douglas; Johnson, David C. (January 2019, Journal of the American Chemical Society)
2. Synthesis and Properties of the Helium Clathrate and Defect Perovskite [He _2–x □ _x ][CaNb]F ₆

   https://doi.org/10.1021/acs.jpcc.4c02174  

   Ma, Shangye; Hester, Brett_R; Lloyd, II, Anthony_J; dos_Santos, Antonio_M; Molaison, Jamie_J; Wilkinson, Angus_P (June 2024, The Journal of Physical Chemistry C)
3. A support theorem for\break the Hitchin fibration: The case of GL _n and K _C

   https://doi.org/10.1515/crelle-2021-0045  

   de Cataldo, Mark Andrea; Heinloth, Jochen; Migliorini, Luca (August 2021, Journal für die reine und angewandte Mathematik (Crelles Journal))

   Abstract We compute the supports of the perverse cohomology sheaves of the Hitchin fibration for ${\mathrm{GL}}_n${\mathrm{GL}_{n}}over the locus of reduced spectral curves. In contrast to the case of meromorphic Higgs fields we find additional supports at the loci of reducible spectral curves. Their contribution to the global cohomology is governed by a finite twist of Hitchin fibrations for Levi subgroups. The corresponding summands give non-trivial contributions to the cohomology of the moduli spaces for every $n\ge 2${n\geq{2}}. A key ingredient is a restriction result for intersection cohomology sheaves that allows us to compare the fibration to the one defined over versal deformations of spectral curves. 

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4. LLAMA: The M _BH – σ _⋆ relation of the most luminous local AGNs

   https://doi.org/10.1051/0004-6361/201936321  

   Caglar, Turgay; Burtscher, Leonard; Brandl, Bernhard; Brinchmann, Jarle; Davies, Richard I.; Hicks, Erin K.; Koss, Michael; Lin, Ming-Yi; Maciejewski, Witold; Müller-Sánchez, Francisco; et al (February 2020, Astronomy & Astrophysics)

   Context. The M BH – σ ⋆ relation is considered a result of coevolution between the host galaxies and their supermassive black holes. For elliptical bulge hosting inactive galaxies, this relation is well established, but there is still discussion concerning whether active galaxies follow the same relation. Aims. In this paper, we estimate black hole masses for a sample of 19 local luminous active galactic nuclei (AGNs; LLAMA) to test their location on the M BH – σ ⋆ relation. In addition, we test how robustly we can determine the stellar velocity dispersion in the presence of an AGN continuum and AGN emission lines, and as a function of signal-to-noise ratio. Methods. Supermassive black hole masses ( M BH ) were derived from the broad-line-based relations for H α , H β , and Pa β emission line profiles for Type 1 AGNs. We compared the bulge stellar velocity dispersion ( σ ⋆ ) as determined from the Ca II triplet (CaT) with the dispersion measured from the near-infrared CO (2-0) absorption features for each AGN and find them to be consistent with each other. We applied an extinction correction to the observed broad-line fluxes and we corrected the stellar velocity dispersion by an average rotation contribution as determined from spatially resolved stellar kinematic maps. Results. The H α -based black hole masses of our sample of AGNs were estimated in the range 6.34 ≤ log M BH  ≤ 7.75 M ⊙ and the σ ⋆CaT estimates range between 73 ≤  σ ⋆CaT  ≤ 227 km s −1 . From the so-constructed M BH  −  σ ⋆ relation for our Type 1 AGNs, we estimate the black hole masses for the Type 2 AGNs and the inactive galaxies in our sample. Conclusions. We find that our sample of local luminous AGNs is consistent with the M BH – σ ⋆ relation of lower luminosity AGNs and inactive galaxies, after correcting for dust extinction and the rotational contribution to the stellar velocity dispersion. 

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5. Experimental and Computational Study of the Lithiation of Ba ₈ Al _y Ge _46–y Based Type I Germanium Clathrates

   https://doi.org/10.1021/acsami.8b11509  

   Dopilka, Andrew; Zhao, Ran; Weller, J. Mark; Bobev, Svilen; Peng, Xihong; Chan, Candace K. (October 2018, ACS Applied Materials & Interfaces)