Two-stage Kondo effect and Kondo-box level spectroscopy in a carbon nanotube
Journal Article (Journal Article)
The concept of the "Kondo box" describes a single spin, antiferromagnetically coupled to a quantum dot with a finite level spacing. Here, a Kondo box is formed in a carbon nanotube interacting with a localized electron. We investigate the spins of its first few eigenstates and compare them to a recent theory. In an "open" Kondo-box, strongly coupled to the leads, we observe a nonmonotonic temperature dependence of the nanotube conductance, which results from a competition between the Kondo-box singlet and the "conventional" Kondo state that couples the nanotube to the leads. © 2010 The American Physical Society.
Full Text
Duke Authors
Cited Authors
- Bomze, Y; Borzenets, I; Mebrahtu, H; Makarovski, A; Baranger, HU; Finkelstein, G
Published Date
- October 18, 2010
Published In
Volume / Issue
- 82 / 16
Electronic International Standard Serial Number (EISSN)
- 1550-235X
International Standard Serial Number (ISSN)
- 1098-0121
Digital Object Identifier (DOI)
- 10.1103/PhysRevB.82.161411
Citation Source
- Scopus