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

Hong Yi Chen, Pekka Pietiläinen, Tapash Chakraborty

Research output: Contribution to journalArticle

14 Citations (Scopus)

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.

Original languageEnglish
Article number073407
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number7
DOIs
Publication statusPublished - 2008 Aug 27
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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