Measurements of Strongly Anisotropic [Formula presented] Factors for Spins in Single Quantum States

J. R. Petta, D. C. Ralph

Research output: Contribution to journalArticle

Abstract

We have measured the full angular dependence, as a function of the direction of magnetic field, for the Zeeman splitting of individual energy states in copper nanoparticles. The [Formula presented] factors for spin splitting are highly anisotropic, with angular variations as large as a factor of 5. The angular dependence fits well to ellipsoids. Both the principal-axis directions and [Formula presented]-factor magnitudes vary between different energy levels within one nanoparticle. The variations agree quantitatively with random-matrix theory predictions which incorporate spin-orbit coupling.

Original languageEnglish (US)
JournalPhysical review letters
Volume89
Issue number15
DOIs
StatePublished - 2002

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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