TY - JOUR
T1 - Nonequilibrium tunneling spectroscopy in carbon nanotubes
AU - Chen, Yung Fu
AU - Dirks, Travis
AU - Al-Zoubi, Gassem
AU - Birge, Norman O.
AU - Mason, Nadya
PY - 2009/1/20
Y1 - 2009/1/20
N2 - We report measurements of the nonequilibrium electron energy distribution in carbon nanotubes. Using tunneling spectroscopy via a superconducting probe, we study the shape of the local electron distribution functions, and hence energy relaxation rates, in nanotubes that have bias voltages applied between their ends. At low temperatures, electrons interact weakly in nanotubes of a few microns channel length, independent of end-to-end-conductance values. Surprisingly, the energy relaxation rate can increase substantially when the temperature is raised to only 1.5 K.
AB - We report measurements of the nonequilibrium electron energy distribution in carbon nanotubes. Using tunneling spectroscopy via a superconducting probe, we study the shape of the local electron distribution functions, and hence energy relaxation rates, in nanotubes that have bias voltages applied between their ends. At low temperatures, electrons interact weakly in nanotubes of a few microns channel length, independent of end-to-end-conductance values. Surprisingly, the energy relaxation rate can increase substantially when the temperature is raised to only 1.5 K.
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U2 - 10.1103/PhysRevLett.102.036804
DO - 10.1103/PhysRevLett.102.036804
M3 - Article
C2 - 19257380
AN - SCOPUS:60149101976
SN - 0031-9007
VL - 102
JO - Physical review letters
JF - Physical review letters
IS - 3
M1 - 036804
ER -