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Journal Article

Current flow and energy dissipation in low-dimensional semiconductor superlattices


Maude,  D. K.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Fowler, D., Patané, A., Ignatov, A., Eaves, L., Henini, M., Mori, N., et al. (2006). Current flow and energy dissipation in low-dimensional semiconductor superlattices. Applied Physics Letters, 88(5): 052111.

Cite as: https://hdl.handle.net/21.11116/0000-000F-033F-8
By applying high magnetic and electric fields to a semiconductor
superlattice (SL) we create quasi-one-dimensional or
quasi-zero-dimensional electronic states. This reduced dimensionality
restricts the range of inelastic scattering processes available to the
conduction electrons, leading to an increase of the inelastic
scattering time and a corresponding decrease of the electrical
conductance. Our study reveals the fundamental link between current
flow and energy dissipation in low-dimensional conductors, which is
relevant to the exploitation of artificial nanowires and quantum dot
SLs for novel applications, including recently proposed thermoelectric
devices.(c) 2006 American Institute of Physics.