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   https://doi.org/10.1029/2023GL105946  

   Flinchum, B A; Grana, D; Carr, B J; Ravichandran, N; Eppinger, B; Holbrook, W S (January 2024, Geophysical Research Letters)

   Abstract Poisson's ratio for earth materials is usually assumed to be positive (V_p/V_s > 1.4). However, this assumption may not be valid in the critical zone because near Earth's surface effective pressures are low (<1 MPa), porosity has a wide range (0%–60%), there are significant texture changes (e.g., unconsolidated vs. fractured media), and saturation ranges from 0% to 100%. We present P‐wave (V_p) and S‐wave (V_s) velocities from seismic refraction profiles collected in weathered crystalline environments in South Carolina and Wyoming. Our data show that ∼20% of the subsurface has negative Poisson's ratios (V_p/V_svalues < 1.4), a conclusion supported by borehole sonic logs. The low V_p/V_svalues are confined to the fractured bedrock and saprolite. Our data support the hypothesis that weathering‐generated microcracks can produce a negative Poisson's ratio and that V_p/V_svalues can thus provide insight into important critical zone weathering processes. 

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2. Exploring the Potential of Nitride and Carbonitride MAX Phases: Synthesis, Magnetic and Electrical Transport Properties of V ₂ GeC, V ₂ GeC _0.5 N _0.5 , and V ₂ GeN

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   Kubitza, Niels; Beckmann, Benedikt; Jankovic, Sanja; Skokov, Konstantin; Riaz, Aysha A; Schlueter, Christoph; Regoutz, Anna; Gutfleisch, Oliver; Birkel, Christina S (February 2024, Chemistry of Materials)
3. Stacking Faults and Short‐Range Magnetic Correlations in Single Crystal Y ₅ Ru ₂ O ₁₂ : A Structure with Ru ^+4.5 One‐Dimensional Chains

   https://doi.org/10.1002/pssb.202000197  

   Sanjeewa, Liurukara D.; Liu, Yaohua; Xing, Jie; Fishman, Randy S.; Kolambage, Mudithangani T.; McGuire, Michael A.; McMillen, Colin D.; Kolis, Joseph W.; Sefat, Athena S. (February 2021, physica status solidi (b))

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4. Electrodeposition of Epitaxial Co on Ru(0001)/Al ₂ O ₃ (0001)

   https://doi.org/10.1149/2.1091915jes  

   Gusley, Ryan; Sentosun, Kadir; Ezzat, Sameer; Coffey, Kevin R.; West, Alan C.; Barmak, Katayun (January 2019, Journal of The Electrochemical Society)
5. Facile Light-Induced Transformation of [Ru ^II (bpy) ₂ (bpyNO)] ²⁺ to [Ru ^II (bpy) ₃ ] ²⁺

   https://doi.org/10.1021/acs.inorgchem.0c01446  

   Karbakhsh Ravari, Alireza; Pineda-Galvan, Yuliana; Huynh, Alexander; Ezhov, Roman; Pushkar, Yulia (October 2020, Inorganic Chemistry)

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