Title :
Influence of nuclear spin polarization on quantum wire conductance
Author :
Nesteroff, James A. ; Pershin, Yuriy V. ; Privman, Vladimir
Author_Institution :
Dept. of Electr., Clarkson Univ., Potsdam, NY, USA
Abstract :
In this study, we study a possibility to measure the transverse and longitudinal relaxation times of a collection of polarized nuclear spins located in the region of a quantum wire via its conductance. The interplay of an external in-plane magnetic field, spin-orbit interaction, and the changing field of the spin-polarized nuclei cause the conductance of the quantum wire to evolve in time. We show that it is possible to extract the transverse and longitudinal relaxation times of the spin-polarized nuclei from the time dependence of the conductance.
Keywords :
nuclear magnetic resonance; quantum theory; semiconductor quantum wires; spin polarised transport; spin-orbit interactions; external in-plane magnetic field; longitudinal relaxation time; nuclear spin polarization; quantum wire conductance; spin-orbit interaction; spin-polarized nuclei; time dependence; transverse relaxation time; Contact resistance; Data mining; Electrons; Heterojunctions; Magnetic field measurement; Nuclear measurements; Polarization; Quantum mechanics; Reservoirs; Wire;
Journal_Title :
Nanotechnology, IEEE Transactions on
DOI :
10.1109/TNANO.2004.837855
