Yigal Meir
Published 2007-10-17Version 1
The phenomenology of the "0.7 anomaly" in quantum point contacts is fully explained in terms of a quasi-localized state, which forms as the point contact opens up. Detailed numerical calculations within spin-density functional theory indeed con rm the emergence of such a state. Quantitative calculations of the conductance and the noise are obtained using a model based on these observations, and are in excellent agreement with existing experimental observations.
Comments: A summary paper, to be included in JPCM Special Issue on 0.7 Feature
Journal: J. Phys.: Condens. Matter 20 (2008) 164208
Electron phase shift at the zero-bias anomaly of quantum point contacts
Ballistic transport through quantum point contacts of multi-orbital oxides
Ferromagnetic Spin Coupling as the Origin of 0.7 Anomaly in Quantum Point Contacts
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