Coexistence of triplet superconductivity and itinerant ferromagnetism
Abstract
The triplet superconductivity in U Ge_{2} and U RhGe coexists with itinerant ferromagnetism such that in the pressuretemperature phase diagram the whole region occupied by the superconducting state is situated inside a more vast ferromagnetic region. In the same family metal U CoGe the pressure dependent critical lines T_{Curie(P) and TSC}(P) of the ferromagnet and the superconducting phase transitions intersect each other. The twoband multidomain superconducting ferromagnet state arises at temperatures below both of these lines. Here I describe the symmetry and the order parameters of the paramagnet as well of the multidomain ferromagnet superconducting states. The Josephson coupling between two adjacent ferromagnet superconducting domains is discussed.
 Publication:

Advances in Theoretical Physics: Landau Memorial Conference
 Pub Date:
 May 2009
 DOI:
 10.1063/1.3149501
 arXiv:
 arXiv:0812.2171
 Bibcode:
 2009AIPC.1134...68M
 Keywords:

 64.60.i;
 74.70.b;
 75.50.Cc;
 74.20.De;
 General studies of phase transitions;
 Superconducting materials;
 Other ferromagnetic metals and alloys;
 Phenomenological theories;
 Condensed Matter  Superconductivity;
 Condensed Matter  Strongly Correlated Electrons
 EPrint:
 6 pages, 1 figure, published in the Proceedings of L.D.Landau 100 years Memorial Conference