Quantum Magnetism and Spintronics

Sergei Urazhdin

Monday, November 28th at 4PM

120 Engineering (Hammond Auditorium)

Magnetism originates from electron spin, which is an example of quantum phenomena that, at single-electron level, do not have a classical limit. Nevertheless, common interpretations of collective magnetism and magnetoelectronic phenomena treat magnetization as a classical vector field. The purpose of my talk is to highlight the phenomena that cannot be captured by the classical approximation. I will illustrate the dichotomy between classical and quantum aspects of magnetism using the example of spin transfer effect – the transfer of angular momentum between magnetic materials and spin currents – which allows unprecedented electronic control of magnetism for a variety of device applications. [Read More…]



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