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1. The proof is in the powder: revealing structural peculiarities in the Yb 3 Rh 4 Sn 13 structure type

   https://doi.org/10.1039/C7CE00419B  

   Oswald, Iain W. ; Rai, Binod K. ; McCandless, Gregory T. ; Morosan, Emilia ; Chan, Julia Y. ( January 2017 , CrystEngComm)
2. The role of Co valence in charge transport in the entropy‐stabilized oxide (Mg 0.2 Co 0.2 Ni 0.2 Cu 0.2 Zn 0.2 )O

   https://doi.org/10.1111/jace.18820  

   Jacobson, V. ; Huang, J. ; Titus, C. J. ; Smaha, R. W. ; Papac, M. ; Lee, S. J. ; Zakutayev, A. ; Brennecka, G. L. ( October 2022 , Journal of the American Ceramic Society)

   Many of the studies on the entropy‐stabilized oxide (Mg_0.2Co_0.2Ni_0.2Cu_0.2Zn_0.2)O have been heavily application‐based. Previous works have studied effects of cation stoichiometry on the entropy‐driven reaction to form a single phase, but a fundamental exploration of the effects of anion stoichiometry and/or redox chemistry on electrical properties is lacking. Using near‐edge X‐ray absorption fine structure (NEXAFS) and electrical measurements, we show that oxidizing thin film samples of (Mg_0.2Co_0.2Ni_0.2Cu_0.2Zn_0.2)O affects primarily the valence of Co, leaving the other cations in this high‐entropy system unchanged. This oxidation increases electrical conduction in these thin films, which occurs via small polaron hopping mediated by the Co valence shift from 2+ to a mixed 2+/3+ state. In parallel, we show that bulk samples sintered in an oxygen‐rich atmosphere have a lower activation energy for electrical conduction than those equilibrated in a nitrogen (reducing) atmosphere. Combining feasible defect compensation scenarios with electrical impedance measurements and NEXAFS data, we propose a self‐consistent interpretation of Co redox‐mediated small polaron conduction as the dominant method of charge transfer in this system.

    

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3. Diffusivity of the interstitial hydrogen shallow donor in In 2 O 3

   https://doi.org/10.1063/1.4995593  

   Qin, Ying ; Weiser, Philip ; Villalta, Karla ; Stavola, Michael ; Fowler, W. Beall ; Biaggio, Ivan ; Boatner, Lynn ( April 2018 , Journal of Applied Physics)
4. Emergent properties in the natural composite Ni 2 MnSb 0.5 Al 0.5

   https://doi.org/10.1088/1361-6463/ab7c9f  

   Samanta, Tamalika ; Salas, D ; Srihari, V ; Karaman, I ; Bhobe, P A ( May 2020 , Journal of Physics D: Applied Physics)
5. A quantum dynamical study of the rotation of the dihydrogen ligand in the Fe(H) 2 (H 2 )(PEtPh 2 ) 3 coordination complex

   https://doi.org/10.1063/1.5026637  

   Gonzalez, Megan E. ; Eckert, Juergen ; Aquino, Adelia J. ; Poirier, Bill ( April 2018 , The Journal of Chemical Physics)