Spin-Dependent Electron Behaviour in Quantum Point Contacts and Dots
LINKOEPING UNIV (SWEDEN)
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We investigate theoretically the effect of spontaneous electron spin polarization in quantum point contacts and quantum dots. Self-consistent calculation process has been developed in the framework of Kohn-Sham LSDA scheme. The existence of the detected spin-polarized states in the low-density regime can be used to explain an anomalous 0.7-structure in the conductance of quantum point contacts. The properties of the potential device based on such an effect are briefly discussed.
- Atomic and Molecular Physics and Spectroscopy
- Solid State Physics