For logic, we focus on building systems using spintronics to overcome perhaps the greatest weakness of conventional field-effect transistor logic—its power dissipation. Although the switching energy of transistors has continued to decrease as conventional devices scale to smaller sizes, the supply voltage cannot scale correspondingly and more energy is lost to charge leakage. We propose instead to manipulate information in collective states such as the domains of ferromagnets. Strong interactions in ferromagnetic domains align electron spins collectively. We have been working to translate these phenomena into practical, concatenable digital logic circuits.

• Spintronics

Fast and low cost gas sensing is a critical technology with applications ranging from fast medical diagnoses to safe energy generation and storage. We functionalize transistors with a variety of novel materials to differentiate unique interactions with different gasses, and use machine learning algorithms to achieve highly sensitive and selective on chip gas sensors.

• Metal Organic Framework sensitized Carbon Nanotube Field Effect Transistors

Earlier research topics include:

• Nanoelectromechanical memories and switches
• Fundamental studies of disorder
• Sensors
• Organic Dye-based Luminescent Solar Concentrators