Two-stage Kondo effect and Kondo-box level spectroscopy in a carbon nanotube
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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.
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Bomze, Y, I Borzenets, H Mebrahtu, A Makarovski, HU Baranger and G Finkelstein (2010). Two-stage Kondo effect and Kondo-box level spectroscopy in a carbon nanotube. Physical Review B - Condensed Matter and Materials Physics, 82(16). p. 161411. 10.1103/PhysRevB.82.161411 Retrieved from https://hdl.handle.net/10161/4257.
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