| 摘要 |
A compound nanotube (17) is made of carbon nitride (CN). Another compound nanotube (19) is made of boron carbide (BC3) with alkali metal doped. Each of the nanotubes has a distorted configuration of atoms in a predetermined direction with a lower symmetry than that of an undistorted configuration. A solenoid element comprises the compound nanotube. A magnetic generating apparatus comprises a compound nanotube, means for applying a tensile to the compound nanotube in a longitudinal direction of said compound nanotube, and means for flowing current at both ends of the compound nanotube. Each of the nanotubes is applied with mechanical stress to controllably vary a current flow direction. Specifically, tensile stress is applied in a longitudinal direction (21) of the nanotube so that an electric current spirally flows around a surface of the nanotube along a spiral path having a diameter of several nanometers, as shown in arrows (23). Thus, a large magnetic field is generates with weak current so that an arrangement for generating a strong magnetic field can be miniaturized.
|
