Fig.1.

1. Organic Superconductors and Conductors in High Magnetic FieldsAndrei G. Lebed, University of Arizona, DMR 1104512 We have recently shown that a new superconducting phase, the Hidden Reentrant Superconductivity, is expected to exist in the organic superconductor (TMTSF)2ClO4 [1]. This phase was shown to have unconventional properties and to be stable in ultrahigh magnetic fields. We have also demonstrated that, in quasi-low-dimensional superconductors, the upper critical magnetic field, which destroys superconductivity, is a nontrivial function of a magnetic field direction (see Fig.1). This may reflect a new underlying physics, such as unconventional superconducting vortices. We have suggested to perform the corresponding experiments on organic superconductor (DMET)2I3. [1] A.G. Lebed, Physical Review Letters, v. 107, 087004 (2011). [2] A.G. Lebed and O. Sepper, JETP Letters, v.94, 414 (2011). Fig.1. The calculated upper critical magnetic field is shown by dotes. The expected from the standard theory upper critical magnetic field is shown by a blue line.

2. Organic Superconductors and Conductors in High Magnetic FieldsAndrei G. Lebed, University of Arizona, DMR 1104512 One graduate student and one undergraduate student are trained under the program in such vital areas of physics as theory of superconductivity, theory of correlated electrons, application of the Feynman diagrams to statistical physics, and numerical methods in condensed matter physics. A second edition of Andrei Lebed’s comprehensive book “The Physics of Organic Superconductors and Conductors”, closely related to the grant topics, is being currently prepared for its publication by Springer publisher (for the first edition, see Fig.2). Andrei Lebed gave an invited talk at the ECRYS international conference (Cargese, France, 2011). Fig.2