Liquid-induced damping of mechanical feedback effects in single electron tunneling through a suspended carbon nanotube

Autor:	Schmid, D. R., Stiller, P. L., Strunk, C., Hüttel, A. K.
Rok vydání:	2014
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Appl. Phys. Lett. 107, 123110 (2015)
Druh dokumentu:	Working Paper
DOI:	10.1063/1.4931775
Popis:	In single electron tunneling through clean, suspended carbon nanotube devices at low temperature, distinct switching phenomena have regularly been observed. These can be explained via strong interaction of single electron tunneling and vibrational motion of the nanotube. We present measurements on a highly stable nanotube device, subsequently recorded in the vacuum chamber of a dilution refrigerator and immersed in the 3He/4He mixture of a second dilution refrigerator. The switching phenomena are absent when the sample is kept in the viscous liquid, additionally supporting the interpretation of dc-driven vibration. Transport measurements in liquid helium can thus be used for finite bias spectroscopy where otherwise the mechanical effects would dominate the current. Comment: 4 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1407.2114 Zobrazit plný text záznamu View this record from Arxiv