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Article Dans Une Revue Applied Physics Letters Année : 2019

Strain sensitivity and symmetry of 2.65 eV color center in diamond nanoscale needles

Résumé

Color centers in diamond have unique applications as nanoscale field sensors. In particular, in the case of strain field, they are key components for the realization of strain-coupled hybrid spin-oscillator systems. Here, we report on the strain sensitivity of the color center emitting at 2.65 eV in diamond nanoscale needles. By contactless piezo-spectroscopy, we compare the strain sensitivity of this center with that of the well-known neutral nitrogen-vacancy (NV0) center. We demonstrate that the 2.65 eV center has a higher strain sensitivity than the NV0 center and can be explored as a strain sensor and/or for strain-coupled systems. Moreover, we perform polarization-resolved photoluminescence spectroscopy under a high uniaxial tensile stress and the polar behavior reported for the 2.65 eV center points out to a defect symmetry which is different from that of the NV0 center.
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Dates et versions

hal-02109311 , version 1 (20-07-2020)

Identifiants

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Linda Venturi, Lorenzo Rigutti, Jonathan Houard, Ivan Blum, S. Malykhin, et al.. Strain sensitivity and symmetry of 2.65 eV color center in diamond nanoscale needles. Applied Physics Letters, 2019, 114 (14), pp.143104. ⟨10.1063/1.5092329⟩. ⟨hal-02109311⟩
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