12 papers
Ionic Diffusion Properties of Rare-Earth High-Entropy Oxides from a Machine-Learned Interatomic Potential
Mary Kathleen Caucci, Billy E. Yang, Saeed S. I. Almishal +2
Rare-earth high-entropy oxides (RE-HEOs) have emerged as a promising class of functional ceramics for solid-state electrochemical applications due to their chemical complexity, str…
Hydrothermally-Assisted Sintering of Calcium Hydroxide Sputtering Targets: A Route to Quantum-Grade CaO Thin Films
Jake A. DeChiara, Tainara Coutinho, Saeed S. I. Almishal +1
In this report we demonstrate dense polycrystalline calcium hydroxide ceramics fabricated by hydrothermally-assisted sintering - often referred to as cold-sintering - to produce hi…
Anomalous Crystallinity and Magnetism in Chemically Disordered Coherent Heterostructures
Saeed S. I. Almishal, Sai Venkata Gayathri Ayyagari, Aaron Pearre +9
High-entropy oxide (HEO) thin films uniquely superimpose exceptional chemical disorder with exceptional crystalline quality and coherence - an intersection we term anomalous crysta…
Quantifying the coupling between strain and cation valence in high entropy oxide thin films using electron microscopy
Sai Venkata Gayathri Ayyagari, Saeed SI Almishal, Debangshu Mukherjee +3
High entropy oxides (HEOs) are a class of materials with vast compositional space and tunable properties, making them attractive for applications in thermoelectrics, magnetism, ion…
Compositional and Oxygen-Vacancy Effects on Phase Stability and Electronic Properties in Ceria-Based Lanthanide High-Entropy Oxides
Mary Kathleen Caucci, Billy E. Yang, Gerald R. Bejger +5
Cerium-based lanthanide high-entropy oxides (LN-HEOs) are promising candidates for solid-state electrolyte (mass transport) applications due to their ability to accommodate high co…
Resolving Structural Transitions in Lanthanide High-Entropy Oxides
Billy E. Yang, Saeed S. I. Almishal, Sai Venkata Gayathri Ayyagari +6
We report a temperature-composition phase diagram for the chemically disordered and CeO2-LA2O3 high entropy oxides (HEOs), where LA denotes equimolar Y, La, Sm, and Pr, delineating…