Atomic-like behaviors and orbital-related Luttinger liquid in carbon nano-peapod quantum dots

Show full item record

Files in this item

PDF 1019.pdf 453.4Kb

Pour citer ce document :
URI: http://hdl.handle.net/2042/6268
Title: Atomic-like behaviors and orbital-related Luttinger liquid in carbon nano-peapod quantum dots
Author: Haruyama, J.; Mizubayashi, J.; Takesue, I.; Okazaki, T.; Shinohara, Y.; Harada, Y.; Awano, Y.
Abstract: We report influence of encapsulated C60 molecules on electron transport in carbon-nanotube peapod quantum dots. We find atomic-like behaviors with doubly degenerate electronic levels, which exist only around ground states, by single electron spectroscopy measured at low back-gate voltages (Vbg). Correlation with presence of nearly free electrons (NFEs) unique to the peapods is discussed. Moreover, we find anomalously high values of power a observed in power laws in conductance versus energy relationships, which are strongly associated with the doubly degenerate levels. It is revealed that the powers originate from Tomonaga-Luttinger liquid via the occupied doubly degenerate levels. Our observations clarify that the encapsulated C60 molecules form doubly degenerate levels only at ground state in peapod quantum dots and do not eliminate a ballistic charge transport.
Subject: Carbon nano-peapods, Fullerenes, Luttinger liquid, Aomic-like behaviors, Single charging effect, Doubly degenerate states
Publisher: TIMA Editions , Grenoble, France
Date: 2006

This item appears in the following Collection(s)

Show full item record





Advanced Search