Related papers: Optical properties of SiV and GeV color centers in nanodiamonds under hydrostatic pressures up to 180 GPa

Optical properties of SiV and GeV color centers in nanodiamonds under hydrostatic pressures up to 180 GPa

URL: http://arxiv.org/abs/2209.09792v3
Date: Tue, 29 Nov 2022 20:58:31 GMT
Title: Optical properties of SiV and GeV color centers in nanodiamonds under hydrostatic pressures up to 180 GPa
Authors: Baptiste Vindolet, Marie-Pierre Adam, Lo\"ic Toraille, Mayeul Chipaux, Antoine Hilberer, G\'eraud Dupuy, Lukas Razinkovas, Audrius Alkauskas, Gerg\H{o} Thiering, Adam Gali, Mary De Feudis, Midrel Wilfried Ngandeu Ngambou, Jocelyn Achard, Alexandre Tallaire, Martin Schmidt, Christoph Becher, Jean-Fran\c{c}ois Roch
Abstract summary: Under hydrostatic pressure we observe blue-shifts of the SiV and GeV zero-phonon lines by 17 THz (70 meV) and 78 THz (320 meV) This work provides guidance on the use of group-IV-vacancy centers as quantum sensors under extreme pressures.
Score: 39.5906786952554
License: http://creativecommons.org/licenses/by/4.0/
Abstract: We investigate the optical properties of silicon-vacancy (SiV) and germanium-vacancy (GeV) color centers in nanodiamonds under hydrostatic pressure up to 180 GPa. The nanodiamonds were synthetized by Si or Ge-doped plasma assisted chemical vapor deposition and, for our experiment, pressurized in a diamond anvil cell. Under hydrostatic pressure we observe blue-shifts of the SiV and GeV zero-phonon lines by 17 THz (70 meV) and 78 THz (320 meV), respectively. These measured pressure induced shifts are in good agreement with ab initio calculations that take into account the lattice compression based on the equation of state of diamond and that are extended to the case of the tin-vacancy (SnV) center. This work provides guidance on the use of group-IV-vacancy centers as quantum sensors under extreme pressures that will exploit their specific optical and spin properties induced by their intrinsic inversion-symmetric structure.

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