Publication details for Professor Tom LancasterMergenthaler, Matthias, Liu, Junjie, Le Roy, Jennifer J., Ares, Natalia, Thompson, Amber L., Bogani, Lapo, Luis, Fernando, Blundell, Stephen J., Lancaster, Tom, Ardavan, Arzhang, Briggs, G. Andrew D., Leek, Peter J. & Laird, Edward A. (2017). Strong Coupling of Microwave Photons to Antiferromagnetic Fluctuations in an Organic Magnet. Physical Review Letters 119(14): 147701.
- Publication type: Journal Article
- ISSN/ISBN: 0031-9007 (print), 1079-7114 (electronic)
- DOI: 10.1103/PhysRevLett.119.147701
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
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Author(s) from Durham
Coupling between a crystal of di(phenyl)-(2,4,6-trinitrophenyl)iminoazanium radicals and a superconducting microwave resonator is investigated in a circuit quantum electrodynamics (circuit QED) architecture. The crystal exhibits paramagnetic behavior above 4 K, with antiferromagnetic correlations appearing below this temperature, and we demonstrate strong coupling at base temperature. The magnetic resonance acquires a field angle dependence as the crystal is cooled down, indicating anisotropy of the exchange interactions. These results show that multispin modes in organic crystals are suitable for circuit QED, offering a platform for their coherent manipulation. They also utilize the circuit QED architecture as a way to probe spin correlations at low temperature.