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

Abstract

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 CdT e (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.

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Cited by in corpus (9)

• Spin-noise-based magnetometry of an $n$-doped GaAs microcavity in the field of elliptically polarized light
• Spin temperature concept verified by optical magnetometry of nuclear spins
• Increased sensitivity of spin noise spectroscopy using homodyne detection in $n$-doped GaAs
• Collision-induced spin noise
• Optical Resonance Shift Spin Noise Spectroscopy
• Raman scattering model of the spin noise
• Angle-resolved optically detected magnetic resonance as a tool for strain determination in nanostructures
• Spin dynamics of hot excitons in diluted magnetic semiconductors with spin-orbit interaction
• Phonon impact on the dynamics of resonantly excited and hot excitons in diluted magnetic semiconductors