Details

Autor(en) / Beteiligte

• Cronenberger, S.
• Scalbert, D.
• Ferrand, D.
• Boukari, H.
• Cibert, J.

Titel

Atomic-like spin noise in solid-state demonstrated with manganese in cadmium telluride

Ist Teil von

• Nature communications, 2015-09, Vol.6 (1), p.8121-8121, Article 8121

Ort / Verlag

London: Nature Publishing Group UK

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Spin noise spectroscopy is an optical technique which can probe spin resonances non-perturbatively. First applied to atomic vapours, it revealed detailed information about nuclear magnetism and the hyperfine interaction. In solids, this approach has been limited to carriers in semiconductor heterostructures. Here we show that atomic-like spin fluctuations of Mn ions diluted in CdTe (bulk and quantum wells) can be detected through the Kerr rotation associated to excitonic transitions. Zeeman transitions within and between hyperfine multiplets are clearly observed in zero and small magnetic fields and reveal the local symmetry because of crystal field and strain. The linewidths of these resonances are close to the dipolar limit. The sensitivity is high enough to open the way towards the detection of a few spins in systems where the decoherence due to nuclear spins can be suppressed by isotopic enrichment, and towards spin resonance microscopy with important applications in biology and materials science. Coupling an atomic vapour to the polarization of light has enabled the creation of spin squeezed and entangled atomic states. Here, the authors realize a solid-state approach by adapting spin noise spectroscopy to probe the spin of manganese ions in cadmium telluride.