Nano Archive

Some unique magnetic properties of nanoscale quantum rings subjected to a Rashba spin-orbit interaction

Chen, Hong-Yi and Pietilainen, Pekka and Chakraborty, Tapash (2008) Some unique magnetic properties of nanoscale quantum rings subjected to a Rashba spin-orbit interaction. PHYSICAL REVIEW B, 78 (7).

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Official URL: http://link.aps.org/abstract/PRB/v78/e073407

Abstract

Quantum rings subjected to a Rashba spin-orbit coupling and an external magnetic field possess interesting magnetic properties. Specifically, the spectral linewidth of magnetic susceptibility is found to be independent of the ring geometry. For zero spin-orbit coupling it varies linearly with temperature and the slope is proportional to a scaling factor of material parameters. When the spin-orbit interaction is switched on, there is a turning temperature below which the spin-orbit coupling strength is directly measurable. The upper bound of the turning temperature is also investigated.

Item Type:Article
Uncontrolled Keywords:magnetic susceptibility; nanostructured materials; spectral line breadth; spin-orbit interactions
Subjects:Physical Science > Nanomagnetics
Physical Science > Quantum phenomena
ID Code:139
Deposited By:Lesley Tobin
Deposited On:11 Nov 2008 15:52
Last Modified:26 Jan 2009 16:23

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