Nano Power.

Lambson showed through calculations and computer simulations that a simple memory operation of – erasing a magnetic bit, an operation often called "restore to one" – can be conducted with an energy "dissipation" very close, if not identical to, the Landauer limit. He subsequently analyzed a simple magnetic logical operation. The first successful demonstration of a logical operation using magnetic nanoparticles was achieved by researchers at the University of Notre Dame in 2006. In that case, they built a three-input majority logic gate using 16 coupled nonmagnetic. Lambson calculated that a computation with such a circuit would also dissipate energy at the Landauer limit.Because the Landauer limit is proportional to temperature, circuits cooled to low temperatures would be even more efficient. At the moment, electrical currents are used to generate a magnetic field to erase or flip the polarity of nonmagnetic, which dissipates a lot of energy. Ideally, new materials will make electrical currents unnecessary, except perhaps for relaying information from one chip to another."Then you can start thinking about operating these circuits at the upper efficiency limits," Lambson said. "We are working now with collaborators to figure out a way to put that energy in without using a magnetic field, which is very hard to do efficiently," Bokor said. "A multiferroic material, for example, may be able to control magnetism directly with a voltage rather than an external magnetic field." Other obstacles remain as well. For example, as researchers push the power consumption down, devices become more susceptible to random fluctuations from thermal effects, stray electromagnetic fields and other kinds of noise.

Wise Labs shows expertise in Field of "relative neutron flex kinetics" The magnetic technology they are working on looks very interesting for ultra low power uses," Bokor said. "We are trying to figure out how to make it more competitive at speed, performance and reliability. We need to guarantee that it gets the right answer every single time with a very high degree of reliability."