High-Pressure Tuning of Electronic and Magnetic States of 2D Compounds
Abstract
Correlated electron 2D materials with van der Waals coupling exhibit unique properties for nanoscale and exotic applications. Pressure can effectively tune their structure and properties, driving new states of matter. For example, FePS3 undergoes two phase transitions at high pressures, the first at 5 GPa and the second at 14 GPa. In this research, we study the electronic and magnetic phases of 2D van der Waals magnetic compounds AMP2S6 (A- Cu, Ag; M- +3 metal). These materials exhibit a variety of ferroic behavior from anti-collinear uncompensated ferro- and antiferroelectrics to antiferromagnetic ordering; indeed, some exhibit a multiferroic combination of these. This variability makes these compounds promising candidates for future electronic devices. Under pressure, the interlayer interaction is enhanced, which could lead to the discovery of new electronic and magnetic phases that potentially further advance the application of the materials. We will use a combination of electrical and magnetotransport measurements, X-ray diffraction, and Raman scattering to reveal the structure-property relationships with the electronic and magnetic properties of AMP2S6 under high pressures. This will allow us to gain a fundamental understanding of the effects of pressure on their properties and predict electronic interactions in new materials. This work could revolutionize our understanding of 2D materials and pave the way for developing new electronic devices with unprecedented properties.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 16, 2024
- Source ID
- FA23862314112
Entities
People
- Takahiro Matsuoka
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of the Philippines Diliman