| US 7,531,892 B2 | ||
| Superconducting boron nanostructures | ||
| Lisa Pfefferle, Branford, Conn. (US); and Dragos Ciuparu, New Haven, Conn. (US) | ||
| Assigned to Yale University, New Haven, Conn. (US) | ||
| Filed on Dec. 13, 2004, as Appl. No. 11/11,504. | ||
| Claims priority of provisional application 60/559724, filed on Apr. 06, 2004. | ||
| Claims priority of provisional application 60/528691, filed on Dec. 11, 2003. | ||
| Prior Publication US 2005/0256006 A1, Nov. 17, 2005 | ||
| Int. Cl. H01L 39/12 (2006.01) | ||
| U.S. Cl. 257—661 [257/E39.006; 505/100; 977/762; 977/822; 977/932] | 17 Claims |

| 6. A one-dimensional superconducting device comprising a boron nanotube having a diameter of less than 50 nm and impregnated with an electron donor element, said boron nanotube having a superconducting transition temperature greater than 36 degrees K. |