Professor Stephen Blundell: Publications

Strong coupling of microwave photons to antiferromagnetic fluctuations in an organic magnet

Physical Review Letters American Physical Society 119:14 (2017) 147701

Authors:

Matthias Mergenthaler, Junjie Liu, Jennifer Le Roy, Natalia Ares, Amber Thompson, Lapo Bogani, F Luis, Stephen Blundell, T Lancaster, Arzhang Ardavan, G Andrew D Briggs, Peter J Leek, Edward Laird

Abstract:

Coupling between a crystal of di(phenyl)-(2,4,6-trinitrophenyl)iminoazanium (DPPH) radicals and a superconducting microwave resonator is investigated in a circuit quantum electrodynamics (cQED) 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 multi-spin modes in organic crystals are suitable for cQED, offering a platform for their coherent manipulation. They also utilize the cQED architecture as a way to probe spin correlations at low temperature.

Quantum measurement, by P. Busch, P. J. Lahti, J.-P. Pellonpää, and K. Ylinen

Contemporary Physics Taylor & Francis 58:4 (2017) 371-371

Local magnetism and spin dynamics of the frustrated honeycomb rhodate Li2RhO3

PHYSICAL REVIEW B 96:9 (2017) ARTN 094432

Authors:

P Khuntia, S Manni, FR Foronda, T Lancaster, SJ Blundell, P Gegenwart, M Baenitz

Static and Fluctuating Magnetic Moments in the Ferroelectric Metal LiOsO$_3$

(2017)

Authors:

Franziska KK Kirschner, Franz Lang, Francis L Pratt, Tom Lancaster, Youguo Shi, Yanfeng Guo, Andrew T Boothroyd, Stephen J Blundell

Crystal structure and magnetic modulation in beta-Ce2O2FeSe2

PHYSICAL REVIEW MATERIALS 1:3 (2017) ARTN 034403

Authors:

C-H Wang, CM Ainsworth, SD Champion, GA Stewart, MC Worsdale, T Lancaster, SJ Blundell, HEA Brand, JSO Evans

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