A5052737035- 2D Materials and Applications
- Topological Materials and Phenomena
- Graphene research and applications
- Magnetic and transport properties of perovskites and related materials
- MXene and MAX Phase Materials
- Silicon and Solar Cell Technologies
- Iron-based superconductors research
- Advanced Condensed Matter Physics
- Analytical Chemistry and Sensors
- Thin-Film Transistor Technologies
- Conducting polymers and applications
- Crystal Structures and Properties
- Quantum and electron transport phenomena
- Silicon Carbide Semiconductor Technologies
- Advanced Sensor and Energy Harvesting Materials
University of Missouri
2020-2022
Abstract While the discovery of two-dimensional (2D) magnets opens door for fundamental physics and next-generation spintronics, it is technically challenging to achieve room-temperature ferromagnetic (FM) order in a way compatible with potential device applications. Here, we report growth properties single- few-layer CrTe 2 , van der Waals (vdW) material, on bilayer graphene by molecular beam epitaxy (MBE). Intrinsic ferromagnetism Curie temperature ( T C ) up 300 K, an atomic magnetic...
Abstract One of the most promising avenues in 2D materials research is synthesis antiferromagnets employing van der Waals (vdW) magnets. However, it has proven challenging, due part to complicated fabrication process and undesired adsorbates as well significantly deteriorated ferromagnetism at atomic layers. Here, engineering antiferromagnetic (AFM) interlayer exchange coupling between atomically thin yet ferromagnetic CrTe 2 layers an ultra‐high vacuum‐free magnetic crystal, Cr 5 Te 8...
Tuning interactions between Dirac states in graphene has attracted enormous interest because it can modify the electronic spectrum of 2D material, enhance electron correlations, and give rise to novel condensed-matter phases such as superconductors, Mott insulators, Wigner crystals, quantum anomalous Hall insulators. Previous works predominantly focus on flat band dispersion coupled from different twisted layers. In this work, a new route realizing physics monolayer under periodic modulation...
Conjugated polymers such as polyethylenedioxythiophene (pEDOT), polypyrrole (pPy), and polyaniline (pAni) exhibit high electrochemical capacities, making them appealing electrode materials for energy storage, desalination, chemical sensing. Recent work has established the growth of thin films pEDOT using alternating gas-phase exposures EDOT monomer a metal chloride (e.g., MoCl5) oxidant in process termed oxidative molecular layer deposition (oMLD). Here, we describe first demonstration oMLD...
Selenium and tellurium are among the few elements that form $AB$O$_3$ perovskite structures with a four valent ion in $A$ site. This leads to highly distorted unusual magnetic behavior. Here we investigate Co Ni selenite tellurite compounds, CoSeO$_3$, CoTeO$_3$, NiSeO$_3$ NiTeO$_3$ using first principles calculations. We find an interplay of crystal field Jahn-Teller distortions underpin electronic properties. While all compounds predicted show insulating G-type antiferromagnetic ground...
Magnetic transition-metal dichalcogenides (TMDs) have been of particular interest due to their unique magnetic properties and layered structure that can be promising for a wide range spintronic applications. One the most exciting compounds in this family magnets is chromium telluride, Cr$_{1+x}$Te$_2$, which has shown rich phases with varied Cr concentrations. An emergent antiferromagnetic (AFM) ordering found Cr$_{1.25}$Te$_2$ (equivalently, Cr$_{5}$Te$_8$), induced by intercalating 0.25...