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arXiv · 2312.12609

Three-photon electron spin resonances

S. I. Atwood·V. V. Mkhitaryan·S. Dhileepkumar·C. Nuibe·S. Hosseinzadeh·H. Malissa·J. M. Lupton·C. Boehme
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Abstract

We report the observation of a three-photon resonant transition of charge-carrier spins in an organic light-emitting diode using electrically detected magnetic resonance (EDMR) spectroscopy at room temperature. Under strong magnetic-resonant drive (drive field $B_1$ ~ static magnetic field $B_0$), a $B_0$-field swept EDMR line emerges when $B_0$ is approximately threefold the one-photon resonance field. Ratios of drive-induced shifts of this line to those of two- and one-photon shifts agree with analytical expressions derived from the Floquet Hamiltonian and confirm the nature of these three-photon transitions, enabling access of spin physics to a hitherto inaccessible domain of quantum mechanics.

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S. I. Atwood, V. V. Mkhitaryan, S. Dhileepkumar, C. Nuibe, S. Hosseinzadeh, H. Malissa, J. M. Lupton, C. Boehme. 2023-12-19. Three-photon electron spin resonances. https://doi.org/10.1103/physrevb.110.l060103

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