4 research outputs found
Electronic structure and the Fermi surface of ThRhIn in comparison with uranium and transuranium compounds
By using a relativistic linear augmented-plane-wave method, we clarify energy
band structure and the Fermi surfaces of recently synthesized thorium compound
ThRhIn. We find several cylindrical Fermi surface sheets, which are similar
to those of CeTIn (T=Ir and Co), PuTGa (T=Co and Rh), and AmCoGa.
We discuss such similarity among the compounds including rare-earth or actinide
ions with different electron numbers.Comment: 2 pages, 2 figure, Proceedings of SCES'05 (July 26-30, 2005, Vienna
Electronic Structure and Fermiology of PuCoGa
By using a relativistic linear augmented-plane-wave method, we clarify energy
band structures and Fermi surfaces of recently discovered plutonium-based
superconductor PuCoGa. We find several cylindrical sheets of Fermi surfaces
with large volume, very similar to CeMIn (M=Ir and Co) isostructural with
PuCoGa, in spite of different -electron numbers between Ce and
Pu ions. The similarity is understood by a concept of electron-hole
conversion in a tight binding model constructed based on the - coupling
scheme. Based on the present results, we provide a possible scenario to explain
why a transition temperature is so high as 18.5K in PuCoGa.Comment: 4 pages, Revtex, with 4 figures embedded in the text. Submitted to
Phys. Rev. Let