Spin-orbit coupling and proximity effects in metallic carbon nanotubes

We study the spin-orbit coupling in metallic carbon nanotubes (CNTs) within the many-body Tomonaga-Luttinger liquid framework. For a well-defined subclass of metallic CNTs, that contains both achiral zigzag as well as a subset of chiral tubes, an effective low-energy field theory description is deri...

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Veröffentlicht in:	Physical review. B 2015-09, Vol.92 (11), Article 115147
1. Verfasser:	Chudzinski, Piotr
Format:	Artikel
Sprache:	eng
Schlagworte:	Carbon nanotubes Condensed matter Hierarchies Liquids Mathematical analysis Spin-orbit interactions Superconductivity Tubes
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container_title	Physical review. B
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creator	Chudzinski, Piotr
description	We study the spin-orbit coupling in metallic carbon nanotubes (CNTs) within the many-body Tomonaga-Luttinger liquid framework. For a well-defined subclass of metallic CNTs, that contains both achiral zigzag as well as a subset of chiral tubes, an effective low-energy field theory description is derived. We aim to describe systems at finite dopings, but close to the charge neutrality point (commensurability). A new regime is identified where the spin-orbit coupling leads to an inverted hierarchy of minigaps of bosonic modes. We then add a proximity coupling to a superconducting (SC) substrate and show that the only order parameter that is supported within the spin-orbit induced phase is a topologically trivial s-SC.
doi_str_mv	10.1103/PhysRevB.92.115147
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A new regime is identified where the spin-orbit coupling leads to an inverted hierarchy of minigaps of bosonic modes. We then add a proximity coupling to a superconducting (SC) substrate and show that the only order parameter that is supported within the spin-orbit induced phase is a topologically trivial s-SC.</abstract><doi>10.1103/PhysRevB.92.115147</doi><oa>free_for_read</oa></addata></record>
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subjects	Carbon nanotubes Condensed matter Hierarchies Liquids Mathematical analysis Spin-orbit interactions Superconductivity Tubes
title	Spin-orbit coupling and proximity effects in metallic carbon nanotubes
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