1. Heater temperature 700 C.
2. The RHEED oscillations were monitored after the heater reached the target temperature.
3. We are using an AC power supply, SiC heater element, with a PID controller.
4. The substrate already had some deposited layers of STO from earlier deposition.
5. There is a suspicion that the oscillations are due to magnetic field changes because of heater current changes due to PID steady state oscillations