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arXiv · 0805.1113

Electron spin resonance signal of Luttinger liquids and single-wall carbon nanotubes

B. Dóra·M. Gulácsi·J. Koltai·V. Zólyomi·J. Kürti·F. Simon
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Abstract

A comprehensive theory of electron spin resonance (ESR) for a Luttinger liquid (LL) state of correlated metals is presented. The ESR measurables such as the signal intensity and the line-width are calculated in the framework of Luttinger liquid theory with broken spin rotational symmetry as a function of magnetic field and temperature. We obtain a significant temperature dependent homogeneous line-broadening which is related to the spin symmetry breaking and the electron-electron interaction. The result crosses over smoothly to the ESR of itinerant electrons in the non-interacting limit. These findings explain the absence of the long-sought ESR signal of itinerant electrons in single-wall carbon nanotubes when considering realistic experimental conditions.

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B. Dóra, M. Gulácsi, J. Koltai, V. Zólyomi, J. Kürti, F. Simon. 2008-05-08. Electron spin resonance signal of Luttinger liquids and single-wall carbon nanotubes. https://doi.org/10.1103/physrevlett.101.106408

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