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

J. R. Petta; D. C. Ralph

doi:10.1103/PhysRevLett.89.156802

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

J. R. Petta, D. C. Ralph

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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 language	English (US)
Journal	Physical review letters
Volume	89
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.89.156802
State	Published - 2002

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.89.156802

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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.",

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AB - 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.

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

Abstract

All Science Journal Classification (ASJC) codes

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