Abstract
The zero temperature phase diagram of Cooper pairs exposed to disorder and a magnetic field is determined theoretically from a variational approach. Four distinct phases are found: a Bose and a Fermi insulating, a metallic, and a superconducting phase, respectively. The results explain the giant negative magnetoresistance found experimentally in In-O, TiN, Be and high- materials.
- Received 16 February 2010
DOI:https://doi.org/10.1103/PhysRevLett.105.267001
© 2010 The American Physical Society