Journal
APPLIED PHYSICS LETTERS
Volume 88, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2192152
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Fundamental physical properties limiting the performance of spin field effect transistors are compared to those of ordinary (charge-based) field effect transistors. Instead of raising and lowering a barrier to current flow these spin transistors use static spin-selective barriers and gate control of spin relaxation. The different origins of transistor action lead to distinct size dependences of the power dissipation in these transistors and permit sufficiently small spin-based transistors to surpass the performance of charge-based transistors at room temperature or above. This includes lower threshold voltages, smaller gate capacitances, reduced gate switching energies, and smaller source-drain leakage currents. (c) 2006 American Institute of Physics.
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