Magnetic trap for cylindrical diamagnetic materials

1. A method of arranging a diamagnetic rod comprising:

arranging first and second magnets on a substrate so as to form an array of magnetic traps defining a template for self-assembling diamagnetic material, each of the first and second magnets extending along a longitudinal direction to define a magnet length;

depositing a plurality of diamagnetic rods onto the array of magnetic traps;

capturing, by the array of magnetic traps, a number of captured diamagnetic rods, among the plurality of diamagnetic rods, corresponding to a number of magnetic traps in the array of magnetic traps;

levitating the captured diamagnetic rods in a vertical direction perpendicular above a contact line located where the first magnet contacts the second magnet, the first magnet and the second magnet having a diametric magnetization in a direction perpendicular to the contact line and the longitudinal direction so as to generate a longitudinal energy potential that traps the diamagnetic rod along the longitudinal direction so as to filter a rod length of the diamagnetic rod based on the magnet lengths,

wherein the longitudinal energy potential confines the diamagnetic rod in a three-dimensional confinement within the magnetic trap and positions the diamagnetic rod being levitated above the contact line against a target substrate to form wiring on the target substrate to perform to self-assembling process, and

wherein the first magnet and the second magnet make up one magnetic trap among an array of magnetic traps mounted on a template substrate.

2. The method of claim 1 , further comprising oscillating the trapped rod along the longitudinal axis to measure a magnetic susceptibility of the rod.

3. The method of claim 2 , further comprising determining the magnetic susceptibility of the rod based on a magnetic field due to a single cylindrical diametric.

4. The method of claim 3 , further comprising:

cleaning the template substrate to remove from the template substrate any un-captured diamagnetic rods among the plurality of diamagnetic rods.

5. The method of claim 4 , further comprising:

bringing the captured diamagnetic rods into contact with a target substrate to form wiring on the target substrate.

6. The method of claim 1 , further comprising wherein the longitudinal energy potential produced having a camel-back shaped energy profile.

7. The method of claim 6 , wherein the camel-back shaped energy profile includes a trough region interposed between a pair of peak regions.

8. The method of claim 7 , wherein the diamagnetic rod is levitated at approximately the trough portion.

9. The method of claim 8 , wherein the camel-back shaped energy profile determines that the rod length of the trapped diamagnetic rod satisfies a length ratio with respect to the magnet length.