Probing excitations in insulators via injection of spin currents
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CitationChatterjee, Shubhayu, and Subir Sachdev. 2015. “Probing Excitations in Insulators via Injection of Spin Currents.” Physical Review B 92 (16) (October). doi:10.1103/physrevb.92.165113.
AbstractWe propose a spin transport experiment to measure the low-energy excitations in insulators with spin degrees of freedom, with a focus on detecting ground states that lack magnetic order. A general formalism to compute the spin current from a metal with a nonequilibrium distribution of spins to an insulator is developed. It is applied to insulating states with and without long range magnetic order, and salient features in the spin conductance are noted.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:30367416
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