Premium
Correlation of Tomonaga–Luttinger liquid, superconductivity, and spin entanglement in carbon nanotubes
Author(s) -
Haruyama J.,
Takesue I.,
Kobayashi N.,
Miyadai S.,
Nomura M.,
Sato D.
Publication year - 2005
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200460023
Subject(s) - condensed matter physics , carbon nanotube , superconductivity , luttinger liquid , quantum entanglement , spin (aerodynamics) , cooper pair , anisotropy , electron , materials science , mean free path , charge (physics) , physics , nanotechnology , quantum mechanics , quantum , thermodynamics
We report successful observation of proximity‐induced superconductivity in multi‐walled carbon nanotubes (MWNTs) within a diffusive charge transport regime and also show enhancement of spin entanglement in coherent electron pairs of this MWNT as the 1D anisotropy of MWNTs becomes stronger. By reducing length of this MWNT below mean free path, MWNT can exhibit Tomonaga–Luttinger liquid behaviors. We show a possibility that Cooper pairs, injected from a superconductor electrode, are separated into individual spin by this TLL. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)