In the ballistic regime, the metallic temperature dependence of the conductivity in a twodimensional electron system in silicon is found to change non-monotonically with the degree of spin polarization. In particular, it fades away just before the onset of complete spin polarization but reappears again in the fully spin-polarized state, being, however, suppressed relative to the zero-field case. Analysis of the degree of the suppression allows one to distinguish between the screening and the interaction-based theories.
ballistic regime, conductivity, two-dimensional electron system, 2D electron system, silicon spin polarization, strongly correlated electrons
Shashkin, A. A.; Deviatov, E. V.; Dolgopolov, V. T.; Kapustin, A. A.; Anissimova, S.; Venkatesan, A.; Kravchenko, S. V.; and Klapwijk, T. M., "Conductivity of a spin-polarized two-dimensional electron liquid in the ballistic regime" (2006). Physics Faculty Publications. Paper 68. http://hdl.handle.net/2047/d20000421
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