Solenoid comprising a compound nanotube and magnetic generating

Details Solenoid comprising a compound nanotube and magnetic generating Solenoid comprising a compound nanotube and magnetic generating

1997-12-22

2000-12-05

Jackson, Jr., Jerome

Active solid-state devices (e.g., transistors, solid-state diode

Thin active physical layer which is

Heterojunction

257415, 257531, 423445, H01L 2906

Patent

active

061570435

ABSTRACT:
A compound nanotube (17) is made of carbon nitride (CN). Another compound nanotube (19) is made of boron carbide (BC.sub.3) 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.

REFERENCES:
patent: 5401975 (1995-03-01), Ihara
patent: 5830326 (1998-11-01), Iijima
Andreas Thess et al., "Crystalline Ropes of Metallic Carbon Nanotubes", Science, vol. 273, Jul. 26, 1996, pp. 483-487.
Dresselhaus, "Science of Fullerenes and Carbon Nanotubes" Academic Press San Diego, 1995.

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