Monopole and Topological Electron Dynamics in Adiabatic Spintronic and Graphene Systems

Details Monopole and Topological Electron Dynamics in Adiabatic Spintronic and Graphene Systems Monopole and Topological Electron Dynamics in Adiabatic Spintronic and Graphene Systems

2009-01-22

arxiv.org/abs/0901.3411v1

Physics

Quantum Physics

21 pages

Scientific paper

A unified theoretical treatment is presented to describe the physics of electron dynamics in semiconductor and graphene systems. Electron spin fast alignment with the Zeeman magnetic field (physical or effective) is treated as a form of adiabatic spin evolution which necessarily generates a monopole in magnetic space. One could transform this monopole into the physical and intuitive topological magnetic fields in the useful momentum (K) or real spaces (R). The physics of electron dynamics related to spin Hall, torque, oscillations and other technologically useful spinor effects can be inferred from the topological magnetic fields in spintronic, graphene and other SU(2) systems.

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