Table 2 Three spin hosting systems in comparison: coupling coefficient \(\Gamma\) and general resolution \({{{\rm{\delta }}}}\) at room (T = 295 K) and cryogenic (T = 50 K) temperatures.
From: Spin defects in hBN as promising temperature, pressure and magnetic field quantum sensors
Coupling coefficient \(\Gamma\) | Resolution \(\delta\) (295 K) | Resolution \(\delta\) (50 K) | |||||
|---|---|---|---|---|---|---|---|
hBN | Diamond | SiC | hBN | Diamond | SiC | hBN | |
Magnetic field B | \(g{\mu }_{{{{\mathrm{B}}}}}=28.0\,{{{\mathrm{kHz}}}}/\upmu{{{\mathrm{T}}}}\)(for \(g=2.00\)) | \(85.1\,\upmu {{{\mathrm{T}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | \(3\, {{{\mathrm{nT}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | \(10\,\upmu {{{\mathrm{T}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | \(4.33\,\upmu {{{\mathrm{T}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | ||
Temperature T | \(-623\,{{{\mathrm{kHz}}}}/{{{\mathrm{K}}}}\) | \(-74\,{{{\mathrm{kHz}}}}/{{{\mathrm{K}}}}\) | −1.1 MHz/K | \(3.82\,{{{\mathrm{K}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | \(0.76\, {{{\mathrm{mK}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | \(1\, {{{\mathrm{K}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | \(0.19\, {{{\mathrm{K}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) |
X Pressure \({\sigma }_{x}\) | \(-0.136\,{{{\mathrm{Hz}}}}/{{{\mathrm{Pa}}}}\) | \(17.5\cdot {10}^{6}\, {{{\mathrm{Pa}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | \(0.891\cdot {10}^{6}\, {{{\mathrm{Pa}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | ||||
Y Pressure \({\sigma }_{y}\) | \(-0.212\,{{{\mathrm{Hz}}}}/{{{\mathrm{Pa}}}}\) | \(11.2\cdot {10}^{6}\, {{{\mathrm{Pa}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | \(0.572\cdot {10}^{6}\, {{{\mathrm{Pa}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | ||||
Z Pressure \({\sigma }_{z}\) | \(-0.91\,{{{\mathrm{Hz}}}}/{{{\mathrm{Pa}}}}\) | \(2.62\cdot {10}^{6}\, {{{\mathrm{Pa}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | \(0.133\cdot {10}^{6}\, {{{\mathrm{Pa}}}}/{\sqrt{{{\mathrm{Hz}}}}}\) | ||||
