Table 1.
SOT characteristics in several typical heterostructures of 2D vdW ferromagnets
| Maximum temperature of SOT switching | Switching write current density | SOT efficiency | |
|---|---|---|---|
| Pt/Fe3GeTe2 (ref. 45.) | 180 K | ~2.5 × 107 A/cm2 | 0.14 |
| Pt/Fe3GeTe2 (ref. 46) | 120 K | ~7.4 × 106 A/cm2 | 0.12 |
| WTe2/Fe3GeTe2 (ref. 60) | 135 K | ~6.5 × 106 A/cm2 | / |
| WTe2/Fe3GeTe2 (ref. 63) | 190 K | ~4.2 × 106 A/cm2 | / |
| WTe2/Fe3GeTe2 (ref. 64) | 160 K | ~3.5 × 106 A/cm2 | 4.6 |
| Bi2Te3/Fe3GeTe2 (this work) | 300 K |
~4 × 106 A/cm2 (200 K); ~2.2 × 106 A/cm2 (300 K) |
0.7 (300 K) |