Phys.org October 5, 2021
Using low-energy muon spin spectroscopy an international team of researchers (Italy, Germany, UK, Israel, South Korea, Japan) discovered the existence of surface magnetism in Sr2RuO4 in its normal state. They detected static weak dipolar fields yet manifesting at an onset temperature higher than 50 K. They ascribed this unconventional magnetism to orbital loop currents forming at the reconstructed Sr2RuO4 surface. The results confirm that physical properties can be dramatically modified at a complex material surface and at interfaces within thin film heterostructures, and these modifications can be exploited for discovering new science for basic and applied research including the design and development of quantum devices…read more. Open Access TECHNICAL ARTICLEÂ
Low energy μSR setup for measurements on SRO214 single crystals. Credit: Nature Communications volume 12, Article number: 5792 (2021)Â