196 citations · 804 across the 12 of their papers we have counts for
8 papers · 1 filter
What is in a Name: Defining -High Entropy- Oxides
Matthew Brahlek, Maria Gazda, Veerle Keppens +10
High entropy oxides are emerging as an exciting new avenue to design highly tailored functional behaviors that have no traditional counterparts. Study and application of these mate…
Entropic elasticity and negative thermal expansion in a simple cubic crystal
David Wendt, Emil Bozin, Joerg Neuefeind +6
While most solids expand when heated, some materials show the opposite behavior: negative thermal expansion (NTE). In polymers and biomolecules, NTE originates from the entropic el…
Long range antiferromagnetic order in a rocksalt high entropy oxide
Junjie Zhang, Jiaqiang Yan, S. Calder +10
We report for the first time the magnetic structure of the high entropy oxide using neutron powder diffraction. This material exhibits…
Structural ground states of ()CrO(=Mg, Zn; = Co, Cu) spinel solid solutions: Spin-Jahn-Teller and Jahn-Teller effects
Moureen C. Kemei, Stephanie L. Moffitt, Lucy E. Darago +5
We examine the effect of small amounts of magnetic substituents in the sites of the frustrated spinels MgCrO and ZnCrO. Specifically we look for the effects of…
Tuning magnetic frustration on the diamond lattice of the A-site magnetic spinels CoAlGaO: Lattice expansion and site disorder
Brent C. Melot, Katharine Page, Ram Seshadri +4
The spinels CoBO with magnetic Co ions on the diamond lattice A site can be frustrated because of competing near-neighbor () and next-near neighbor () inte…
Local structural origins of the distinct electronic properties of Nb-substituted SrTiO and BaTi
Katharine Page, Taras Kolodiazhnyi, Thomas Proffen +2
Near or less than 10% Nb substitution on the Ti site in perovskite SrTiO results in metallic behavior, in contrast to what is seen in BaTiO. Given the nearly identical stru…
Local structure evolution in polycrystalline ZnMgO () studied by Raman and by synchrotron x-ray pair distribution analysis
Young-Il Kim, Katharine Page, Andi M. Limarga +2
The local structures of ZnMgO alloys have been studied by Raman spectroscopy and by synchrotron x-ray pair distribution function (PDF) analysis. Within the solid soluti…
Synchrotron X-ray study of polycrystalline wurtzite Zn1-xMgxO (0 <= x <= 0.15): Evolution of crystal structure and polarization
Young-Il Kim, Katharine Page, Ram Seshadri
The effect of Mg-substitution on the crystal structure of wurtzite ZnO is presented based on synchrotron X-ray diffraction studies of polycrystalline Zn1-xMgxO (0 <= x <= 0.15). In…