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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