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Spin Glass: Nano-Magnetics That Show Similarities to the Human Brain
In ferromagnetic materials, the atomic spins of the poles in the material all line up in the same direction to produce a magnetic effect. Unlike ferromagnets, spin glass materials have randomly distributed equal number of positive and negative poles and exhibit no overall magnetization.
Scientists have recently discovered that the chemical element Neodymium (Nd) behaves like a spin glass.
Alexander Khajetoorians, professorat Radboud University, said “that this complex and glassy magnetic behavior could also be observed in uncountable new materials, including other elements on the periodic table. It will refine textbook knowledge of the basic properties of matter. But it will also provide a proving ground to develop new theories where we can link physics to other fields, for example, theoretical neuroscience. The complex evolution of neodymium may be a platform to mimic basic behavior used in artificial intelligence. All the complex patterns which can be stored in this material can be linked to image recognition.”
Michael Saccone, a post-doctoral researcher in theoretical physics at Los Alamos National Laboratory, said that “theoretical models describing spin glasses are broadly used in other complex systems, such as those describing brain function, error-correcting codes, or stock-market dynamics. This wide interest in spin glasses provides strong motivation to generate an artificial spin glass.”
