Apr 20th, 1:00 PM - 4:00 PM


From Atoms to Memory: Characterization of Chalcogenide Glasses for use in Zero-Field- Splitting Based Non-Volatile Memory Devices

Faculty Sponsor

Dr. Jeff Peloquin and Dr. Kris Campbell


One of the problems with current computer memory DRAM devices is that when the power is removed the devices lose their information. Non-volatile memory devices based on FLASH technology are slow relative to DRAM and are therefore not suitable for use as a main memory. We have synthesized a number of transition metal doped chalcogenide glasses with the unique property their electronic transitions are split in the absence of a magnetic field. This splitting is called the Zero-Field-Splitting (ZFS). If the coordination environment or redox state of the transition metal is perturbed then its ZFS properties will also be perturbed. In this study, we report the results of electron paramagnetic resonance spectroscopic, Raman spectroscopic and differential scanning calorimetry experiments that characterize the magnetic, vibrational and thermal properties of the new glasses.