Journal Article 2D magnets 2D materials 2D polar metal 3VEX9T7UT5 7782-42-5 Gases Graphite Indoles Organometallic Compounds Research Support, Non-U.S. Gov't X-ray magnetic circular dichroism angle‐resolved photoemission spectroscopy buckled honeycomb binary lattice copper phthalocyanine copper-hexadecafluoro-phthalocyanine density functional theory dirac nodal lines/points first‐principles calculations monolayer chromium telluride monolayer magnet monolayer vanadium diselenide reconstructed line defects room temperature ferromagnetism scanning probe microscopy scanning tunneling microscopy spin frustration van der Waals epitaxy vanadium diselenide