Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Quantum pumps formed of double walled carbon nanotubes
AU - Zolyomi, V.
AU - Oroszlany, L.
AU - Lambert, C. J.
N1 - 23rd Winterschool on Electronic Properties of Novel Materials, Kirchberg, GERMANY, MAR 14, 2009
PY - 2009/12/1
Y1 - 2009/12/1
N2 - Using the Brouwer formula, we employ Green's function technique to study charge pumping in shuttle geometry double walled carbon nanotubes. We find strong chirality dependence, and that there is virtually no pumping if the chiral angle of the two walls is the same. We discuss which are the optimal chiralities that can be used for such quantum pumps. Furthermore, we argue that charge pumping with double walled tubes can be used to probe the strength of the inter-layer coupling between the inner and outer nanotube.
AB - Using the Brouwer formula, we employ Green's function technique to study charge pumping in shuttle geometry double walled carbon nanotubes. We find strong chirality dependence, and that there is virtually no pumping if the chiral angle of the two walls is the same. We discuss which are the optimal chiralities that can be used for such quantum pumps. Furthermore, we argue that charge pumping with double walled tubes can be used to probe the strength of the inter-layer coupling between the inner and outer nanotube.
U2 - 10.1002/pssb.200982271
DO - 10.1002/pssb.200982271
M3 - Journal article
VL - 246
SP - 2650
EP - 2653
JO - physica status solidi (b)
JF - physica status solidi (b)
SN - 0370-1972
IS - 11-12
ER -