Publications by authors named "Koushik Jagadish"
Covalent 2D magnets such as CrTe, which feature self-intercalated magnetic cations located between monolayers of transition-metal dichalcogenide material, offer a unique platform for controlling magnetic order and spin texture, enabling new potential applications for spintronic devices. Here, it is demonstrated that the unconventional anomalous Hall effect (AHE) in CrTe, characterized by additional humps and dips near the coercive field in AHE hysteresis, originates from an intrinsic mechanism dictated by the self-intercalation. This mechanism is distinctly different from previously proposed mechanisms such as topological Hall effect, or two-channel AHE arising from spatial inhomogeneities.
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- The study investigates the impact of hydrogen incorporation in layered superconducting nickelate films and its potential link to superconductivity.
- Films are created by converting a stable parent compound into the desired phase using a reducing agent like CaH, but achieving highly crystalline nickelate films remains challenging.
- Findings show that hydrogen incorporation is minimal across various samples, both superconducting and non-superconducting, suggesting that it’s not essential for achieving superconductivity in these nickelate systems.
The facet chemistry of halide perovskite nanocrystals plays a key role in designing nanoscale epitaxial heterostructures. However, despite significant successes achieved in designing these nanocrystals, their heterostructures with several leading transition metals could not be established yet. Herein, the possible heterostructures of metals beyond transition metals are explored and the epitaxial combinations of soft CsPbBr nanocrystals with the post-transition metal Bi(0) are reported.
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- * Researchers successfully created epitaxial heterostructures using orthorhombic CsPbBr and cubic Pt by focusing on specific crystal facets and high-temperature reactions.
- * The study highlights the significance of lattice matching at junctions, establishing strong relationships between different crystal structures and demonstrating that they can coexist within a single framework.