Upper critical field and vortex lattice in triplet superconductivity in PrOs4Sb12

• Published in: Journal of magnetism and magnetic materials Vol. 310; no. 2; pp. 631 - 633
• Main Authors: MAKI, K, MEASSON, M.-A, PARKER, D, LI, W, WON, H
• Format: Conference Proceeding Journal Article
• Language: English
• Published: Amsterdam Elsevier Science 01.03.2007
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Physics; Properties of type I and type II superconductors; Superconductivity; Vortex lattices ,flux pinning, flux creep; Magnetic flux; 74.25.Qt; Phase diagrams; Osmium alloys; Vortex lattice; Antimony alloys; Superconductivity; Magnetic field effects; PrOs4Sb12; 74.70.Tx; Critical field; 74.25.Ha; Triplet state; Monocrystals; Superconductors; Praseodymium alloys; Skutterudites; Upper critical field; Flux-line lattices; Square lattices; Triplet superconductivity
• ISSN: 0304-8853
• DOI: 10.1016/j.jmmm.2006.10.519

We study the upper critical field of the A and B phases in the filled skutterudite PrOs4Sb12 within the p+h-wave superconductivity proposed recently. In PrOs4Sb12 the actual location of the A-B transition is controversial. Also one of us (MAM) found some of high quality single crystals with a single phase. We show here all the Hc2(T) data obtained by Measson et al. are consistant with that of the A phase but none of them matches to the one for the B phase. Also the present model predicts the square vortex lattice when the magnetic field is parallel to the one of the crystal axis(say [001]) in the wide region of the T-H phase diagram.