Onsager phase factor of quantum oscillations in the organic metal θ-(BEDT-TTF)4CoBr4(C6H4Cl2)

@article{Audouard2013OnsagerPF,
  title={Onsager phase factor of quantum oscillations in the organic metal $\theta$-(BEDT-TTF)4CoBr4(C6H4Cl2)},
  author={Alain Audouard and Jean-Yves Fortin and David Vignolles and Rustem B. Lyubovskii and Elena I. Zhilyaeva and Rimma N. Lyubovskaya and Enric Canadell},
  journal={Synthetic Metals},
  year={2013},
  volume={171},
  pages={51-55}
}
Abstract de Haas–van Alphen oscillations are studied for Fermi surfaces illustrating the Pippard's model, commonly observed in multiband organic metals. Field- and temperature-dependent amplitude of the various Fourier components, linked to frequency combinations arising from magnetic breakdown between different bands, are considered. Emphasis is put on the Onsager phase factor of these components. It is demonstrated that, in addition to the usual Maslov index, field-dependent phase factors… Expand

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Non-Lifshitz-Kosevich field- and temperature-dependent amplitude of quantum oscillations in the quasi-two dimensional metal θ-(ET)₄ZnBr₄(C₆H₄Cl₂).
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According to band structure calculations, the Fermi surface of the quasi-two dimensional metal θ-(ET)4ZnBr4(C6H4Cl2) illustrates the linear chain of coupled orbits model, which has a significant influence on Fourier components such as 2α and β+α, yielding strongly non-Lifshitz-Kosevich behaviour in the latter case. Expand
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