Rights statement: © 2017 American Physical Society
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Strong Coupling of Microwave Photons to Antiferromagnetic Fluctuations in an Organic Magnet
AU - Mergenthaler, M
AU - Liu, Junjie
AU - Le Roy, Jennifer J
AU - Ares, N
AU - Thompson, Amber L
AU - Bogani, L.
AU - Ardavan, A
AU - Briggs, G. Andrew D.
AU - Leek, P J
AU - Laird, E A
N1 - © 2017 American Physical Society
PY - 2017/10/2
Y1 - 2017/10/2
N2 - 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.
AB - 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.
U2 - 10.1103/PhysRevLett.119.147701
DO - 10.1103/PhysRevLett.119.147701
M3 - Journal article
VL - 119
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 14
M1 - 147701
ER -