Magnetic Characterization of Bithermally Deposited Iron Phthalocyanine Thin Films

Metallo-phthalocyanine thin films are best known for applications based on their optical and electronic properties. Amongst the family of metallo-phthalocyanines, the iron compound stands out with unique magnetic properties.~The~grain size of~iron phthalocyanine can be tuned with the deposition~temperature. Higher substrate growth temperatures lead to larger coercivity values in the magnetic hysteresis loop below 5 K, when measured at 100 Oe/s. We expand this idea and grow iron~phthalocyanine thin films in two thermal stages. Each~layer of iron~phthalocyanine is grown at a different temperature. We compare the magnetic and physical properties of~these bithermally grown heterostructures to the control samples deposited with a single growth temperature.