A5062377041- 2D Materials and Applications
- Molecular Junctions and Nanostructures
- Topological Materials and Phenomena
- Cold Atom Physics and Bose-Einstein Condensates
- Perovskite Materials and Applications
- Heusler alloys: electronic and magnetic properties
- Inorganic Chemistry and Materials
- Magnetic properties of thin films
- MXene and MAX Phase Materials
- Near-Field Optical Microscopy
- Graphene research and applications
- Advanced Thermoelectric Materials and Devices
- Magnetic and transport properties of perovskites and related materials
University of California, Riverside
2019-2022
A two-dimensional (2D) topological insulator exhibits the quantum spin Hall (QSH) effect, in which topologically protected conducting channels exist at sample edges. Experimental signatures of QSH effect have recently been reported an atomically thin material, monolayer WTe2. Here, we directly image local conductivity WTe2 using microwave impedance microscopy, establishing beyond doubt that conduction is indeed strongly localized to physical edges temperatures up 77 K and above. The edge...
Multiple magnetic skyrmion phases add an additional degree of freedom for skyrmion-based ultrahigh-density spin memory devices. Extending the field to 2D van der Waals magnets is a rewarding challenge, where realizable freedoms (e.g., thickness, twist angle, and electrical gating) high density result in intriguing new properties enhanced functionality. In this work, interface, formed by two ferromagnets Cr2 Ge2 Te6 Fe3 GeTe2 with Curie temperature ≈65 ≈205 K, respectively, hosting groups...
The magnetic properties in two-dimensional van der Waals materials depend sensitively on structure. CrI3, as an example, has been recently demonstrated to exhibit distinct depending the layer thickness and stacking order. Bulk CrI3 is ferromagnetic (FM) with a Curie temperature of 61 K rhombohedral stacking, whereas few-layer layered antiferromagnetic (AFM) phase lower ordering 45 monoclinic stacking. In this work, we use cryogenic force microscopy investigate flakes intermediate range...