Phase diagram of electron systems near the superconductor-insulator transition.
نویسندگان
چکیده
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-T(c) materials.
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ورودعنوان ژورنال:
- Physical review letters
دوره 105 26 شماره
صفحات -
تاریخ انتشار 2010