Evolution of the Fermi surface and the oscillatory exchange coupling across Cr and Cr-based alloys | Zendy

R. J. Hughes | Zendy; S. B. Dugdale | Zendy; Zs. Major | Zendy; M. A. Alam | Zendy; T. Jarlborg | Zendy; E. Bruno | Zendy; B. Ginatempo | Zendy

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Evolution of the Fermi surface and the oscillatory exchange coupling across Cr and Cr-based alloys

Author(s) -

R. J. Hughes,

S. B. Dugdale,

Zs. Major,

M. A. Alam,

T. Jarlborg,

E. Bruno,

B. Ginatempo

Publication year - 2004

Publication title -

physical review b

Language(s) - English

Resource type - Journals

eISSN - 1538-4489

pISSN - 1098-0121

DOI - 10.1103/physrevb.69.174406

Subject(s) - fermi surface , coupling (piping) , condensed matter physics , surface (topology) , physics , materials science , period (music) , fermi gamma ray space telescope , dimension (graph theory) , superconductivity , geometry , metallurgy , mathematics , acoustics , pure mathematics

A comprehensive investigation of the Fermi surface topologies of a series of Cr1-xVx and Cr1-xMox alloys highlights the role of nesting in determining the periods of the oscillatory exchange coupling observed in multilayer systems. The long-standing controversy over the origin of the long-period oscillations across Cr and Cr-based alloys is resolved, with the evolution of one dimension of the N-hole ellipsoid Fermi surface sheet being directly associated with the evolution of the period

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