Abstract
About one-half a century ago, it was realized that electrons experience a repulsive barrier when approaching the surface of condensed phases of helium, hydrogen, and neon. This led to the proposal and subsequent observation of image-potential surface-bound electronic states, which exhibit intriguing quasi-two-dimensional behavior. In the present work, we report similar quasi-one-dimensional electronic states by exploring single-wall carbon nanotubes coated both inside and outside by thin helium films. Electrons near such structures are localized in the radial direction, but free to move along the nanotube axis. The many-body aspects of the system are discussed qualitatively.
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Acknowledgments
It is a pleasure and a privilege to dedicate this contribution to Flavio Toigo, honoring a scientist who has given important contributions in many areas of condensed matter and statistical physics. One of the authors (M. C.) is particularly delighted to acknowledge a collaborative interaction over 35 years with professor Toigo, a creator of novel ideas and a fearless calculator. One of us (M. M.) acknowledges support from Dipartimento di Fisica, Università degli Studi di Milano, the Simons Foundation, and NSF (Grant no. DMR-1409510). We also acknowledge very helpful discussions with S. Rotkin and S. Hernandez.
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Motta, M., Galli, D.E., Liebrecht, M. et al. Quasi-One-Dimensional Electronic States Inside and Outside Helium-Plated Carbon Nanotubes. J Low Temp Phys 185, 161–173 (2016). https://doi.org/10.1007/s10909-016-1631-8
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DOI: https://doi.org/10.1007/s10909-016-1631-8