Study on tunable resonator using a cantilevered carbon nanotube encapsulating a copper nanocluster

We investigated an ultrahigh frequency carbon nanotube resonator encapsulating a nanocluster, as another tunable resonator, via classical molecular dynamics simulations and continuum models. The fundamental frequency of cantilevered carbon nanotube resonator encapsulating a copper nanocluster could be adjusted by controlling the position of the encapsulated copper nanocluster. Data obtained from the molecular dynamics simulations were analyzed with continuum theory, and we found that statistically the change in the effective mass factor was greatly correlated with the position change of the encapsulated nanocluster.