Strong on-Chip Microwave Photon-Magnon Coupling Using Ultralow-Damping Epitaxial Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub> Films at 2 K.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 37235476.
- Also identified by DOI 10.1021/acs.nanolett.3c00959.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub> is arguably the best magnetic material for magnonic quantum information science (QIS) because of its extremely low damping. We report ultralow damping at 2 K in epitaxial Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub> thin films grown on a diamagnetic Y<sub>3</sub>Sc<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> substrate that contains no rare-earth elements. Using these ultralow damping YIG films, we demonstrate for the first time strong coupling between magnons in patterned YIG thin films and microwave photons in a superconducting Nb resonator. This result paves the road toward scalable hybrid quantum systems that integrate superconducting microwave resonators, YIG film magnon conduits, and superconducting qubits into on-chip QIS devices.