Torsional oscillation of carbon nanotubes driven by electron spins
This study investigates how electron spins can drive mechanical torsional vibrations in suspended carbon nanotubes using current-induced excitation. By tuning the magnetic field so that its spin energy matches the nanotube's vibrational energy, a sharp resonant behavior occurs. This mechanism allows angular momentum from electron spins to be transferred into mechanical rotation, providing a theoretical basis for controlling nanoelectromechanical systems.