Forbidden coherent transfer observed between two realizations of quasi-harmonic spin systems

Sylvain Bertaina (1) , G. Yue (2) , C.-E. Dutoit (1) , I. Chiorescu (2)

1 IM2NP - Institut des Matériaux, de Microélectronique et des Nanosciences de Provence
2 FSU - Florida State University [Tallahassee]

The multilevel system 55 Mn 2+ is used to generate two pseudoharmonic level systems, as representations of the same electronic sextuplet at different nuclear spin projections. The systems are coupled using a forbidden nuclear transition induced by the crystalline anisotropy. We demonstrate Rabi oscillations between the two representations in conditions similar to two coupled pseudoharmonic quantum oscillators. Rabi oscillations are performed at a detuned pumping frequency which matches the energy difference between electronuclear states of different oscillators. We measure a coupling stronger than the decoherence rate to indicate the possibility of fast information exchange between the systems.

Domaines: Electrons fortement corrélés [cond-mat.str-el]

Sylvain Bertaina, G. Yue, C.-E. Dutoit, I. Chiorescu. Forbidden coherent transfer observed between two realizations of quasi-harmonic spin systems. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2017, 96 (2), pp.61 - 68. ⟨10.1103/PhysRevB.96.024428⟩. ⟨hal-01627923⟩