Alexandros Barnasas

Short presentation

I am a Postdoctoral Researcher at the Department of Physics and Astronomy, working in materials physics. My research focuses on magnetic thin films and amorphous alloys, addressing finite-size effects, structural disorder, and phase transitions in low-dimensional systems. I perform polarized neutron reflectivity and cryogenic magneto-optical Kerr effect measurements and have expertise in thin-film growth using UHV magnetron sputtering. Also i am a member of the SuperADAM team.

Keywords

• Magnetic thin films; Amorphous alloys; Finite-size effects; Polarized neutron reflectometry; MOKE; UHV magnetron sputtering;

Biography

I was born in Kalamata, Greece, and studied Materials Science at the University of Patras, where I completed my BSc, MSc, and PhD. I am currently a Postdoctoral Researcher at Uppsala University. My scientific interests are driven by a curiosity about how complex behavior emerges from simple building blocks and by a motivation to connect fundamental research with collaborative, interdisciplinary environments. Outside academia, I enjoy football, basketball, and table tennis, and I value teamwork, persistence, and curiosity both in research and in everyday life.

Research

My research focuses on emergent phenomena in thin-film materials as their dimensions approach the nanoscale. During my doctoral studies, I investigated finite-size effects and optoelectronic properties in metal-oxide thin films. In my current postdoctoral work, I study magnetic thin films and amorphous alloys, addressing how dimensionality and structural disorder influence magnetic order and phase transitions using advanced growth and characterization techniques.