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- W1553642694 abstract "Inducing finite magnetization on the surface of 3-D topological insulator (TI) has been a topic of recent interest. In this letter we argue that even the pristine TI surfaces states are perfect analogs of ferromagnetic half metals due to complete polarisation of an emergent momentum independent pseudo-spin (SU(2)) degree of freedom (D.O.F) on the surface which in general is a combination of spin (sigma) and orbital parity (tau) quantum numbers of electrons belonging to a unit cell of TI crystals. To put this claim on firm footing, we present analytic results which clearly show that the tunneling conductance between two arbitrary TI surfaces of the same TI material is dominated by this half metallic behaviour leading to physics reminiscent of a spin-valve. These findings provide a completely new perspective on using TI-TI junctions for device applications." @default.
- W1553642694 created "2016-06-24" @default.
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- W1553642694 date "2015-02-27" @default.
- W1553642694 modified "2023-09-27" @default.
- W1553642694 title "Pseudo-spin half metals on the surface of 3-D topological insulators" @default.
- W1553642694 hasPublicationYear "2015" @default.
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