Table 3.
Summary of resonator quality factors (Q) and MW magnetic-field amplitudes (B1) used for recording CW and RSEPR spectra for all samples under study.
| Sample | QCWa | B1,CW (µT)b | QRSa | B1,RS (µT)b |
|---|---|---|---|---|
| A | 9170 | 3.18 | 7010 | 22.9 |
| B | 9230 | 3.16 | 7520 | 23.6 |
| C | 9000 | 3.09 | 7910 | 24.3 |
| D | 9160 | 3.13 | 7120 | 23.0 |
| E | 9170 | 3.12 | 7140 | 23.0 |
| F | 9180 | 3.12 | 7270 | 23.2 |
| G | 9200 | 3.13 | 6770 | 22.3 |
Resonator Q factors, as determined power-ring-down measurements (Q = π τ νr, where τ is the time constant of the mono-exponential fit to the ring-down curve, and νr is the MW frequency).
B1 values were calculated from , where P is the incident MW power, Δνr = νr / Q the resonator bandwidth and C the resonator conversion efficiency as specified by the manufacturer (see table 2).