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  1. Article

    Open Access

    Atomic-scale engineering of magnetic anisotropy of nanostructures through interfaces and interlines

    The central goals of nanoscale magnetic materials science are the self-assembly of the smallest structure exhibiting ferromagnetic hysteresis at room temperature, and the assembly of these structures into the ...

    S. Ouazi, S. Vlaic, S. Rusponi, G. Moulas, P. Buluschek… in Nature Communications (2012)

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  2. No Access

    Article

    Magnetic anisotropy of deposited transition metal clusters

    We present results of magnetic torque calculations using the fully relativistic spin-polarized Korringa-Kohn-Rostoker approach applied to small Co and Fe clusters deposited on the Pt(111) surface. From the mag...

    S. Bornemann, J. Minár, J. B. Staunton, J. Honolka… in The European Physical Journal D (2007)

  3. No Access

    Article

    Lanthanide contraction and magnetism in the heavy rare earth elements

    The heavy rare earth elements differ only in their number of 4f electrons, but this subtle difference leads to a wide variety of magnetic structures. This paper rationalizes this diversity of behaviours within a ...

    I. D. Hughes, M. Däne, A. Ernst, W. Hergert, M. Lüders, J. Poulter… in Nature (2007)

  4. No Access

    Article

    Ordering tendencies in alloys and their microscopic origins from a first-principles theory of concentration waves

    Compositional, displacement, and magnetic pair-correlation functions in alloys are measured directly by diffuse scattering techniques. A first-principles theory of short-range order in high-temperature, disord...

    D. D. Johnson, J. D. Althoff, F. J. Pinski, J. B. Staunton… in Journal of Phase Equilibria (1997)

  5. No Access

    Chapter

    Competing Mechanisms for Ordering Tendencies in BCC CuAuZn2 and FCC AuFe Alloys

    We have implemented a first-principles theory of short-range order in high-temperature, disordered, multicomponent alloys (and magnetic and paramagnetic binary alloys) which determines the atomic (and magnetic...

    D. D. Johnson, J. D. Althoff, J. B. Staunton, M. F. Ling… in Stability of Materials (1996)

  6. No Access

    Chapter

    Fluctuations in Density Functional Theory: Random Metallic Alloys and Itinerant Paramagnets

    Multicomponent metallic systems frequently form random solid solutions. In this interesting state of condensed matter, on the average, atoms occupy a regular array of lattice sites but the nature of the atom o...

    B. L. Gyorffy, J. B. Staunton, G. M. Stocks in Density Functional Theory (1995)

  7. No Access

    Chapter

    An IPES Confirmation of CPA Predictions for Ni-Fe Alloys

    Inverse photoelectron spectrometry at normal incidence to the (110) faces of Ni0.75Fe0.25, Ni0.50Fe0.50 and Ni has been used to confirm the predictions of a SCF-KKR-CPA calculation for the amount of disorder scat...

    P. T. Andrews, N. Heritage, A. R. Law… in Metallic Alloys: Experimental and Theoreti… (1994)

  8. No Access

    Chapter

    A Multiple Scattering Theory of Magnetic Coupling Between Metallic Multilayers

    We have developed a new multiple scattering theory approach for magnetic metallic multilayers. This formalism allows us, in a first principles, parameter free, scheme, the calculation of the magne...

    E. Bruno, B. L. Gyorffy, J. B. Staunton in Metallic Alloys: Experimental and Theoreti… (1994)

  9. No Access

    Chapter

    The Origins of Ordering in CuPt

    The alloy CuPt is one of the few that order into a L11 crystal structure, i.e. planes of copper and planes of platinum perpendicular to the > 111 < direction. For disordered CuPt, the calculated Warren-Cowley sho...

    J. F. Clark, F. J. Pinski, P. A. Sterne… in Metallic Alloys: Experimental and Theoreti… (1994)

  10. No Access

    Chapter

    Concentration Waves,Itinerant Electrons and Onsager Cavity Fields

    We refer to a theory for the compositional correlation function for metallic alloys in which the electronic structure is treated in a ‘first principles’ fashion. With the assumption that the underlying lattice...

    J. B. Staunton, M. F. Ling, D. D. Johnson… in Metallic Alloys: Experimental and Theoreti… (1994)

  11. No Access

    Chapter

    First Principles Theory of Disordered Alloys and Alloy Phase Stability

    Almost immediately after the discovery of quantum mechanics, physicists and metallurgist began the task of trying to understand the origins of alloy phase stability in terms of the underlying electronic struct...

    G. M. Stocks, D. M. C. Nicholson… in Statics and Dynamics of Alloy Phase Transf… (1994)

  12. No Access

    Chapter

    First Principles Theory of Alloy Phase Stability: Ordering and Pre-Martensitic Phenomena in β-Phase NiAl

    We review, briefly, the first principles KKR-CPA theory of the electronic structure and energetics of alloys in which compositional disorder plays a role. We also review the first principles theories of orderi...

    G. M. Stocks, W. A. Shelton, D. M. Nicholson… in Ordered Intermetallics — Physical Metallur… (1992)

  13. No Access

    Chapter

    On the Causes of Compositional Order in NiPt Alloys

    We review, briefly, the arguments which gave rise to the current controversy concerning the origin of compositional order in NicPt(1-c) alloys. We note that strain fluctuations play an important role in determini...

    B. L. Györffy, F. J. Pinski, B. Ginatempo… in Structural and Phase Stability of Alloys (1992)

  14. No Access

    Article

    Spin Polarised Relativistic Kkr

    We review spin polarised multiple scattering theory and show how it can provide a description of magnetic anisotropic effects in metallic systems. An interpretation in terms of the leading relativistic correct...

    J. B. Staunton, M. Matsumoto, P. Strange in MRS Online Proceedings Library (1991)

  15. No Access

    Article

    Compositional Disorder, Magnetism, and Their Interplay in Metallic Alloys

    Chemical disorder leads to a variety of intriguing phenomena in alloys which have yet to be fully understood, particularly those phenomena occuring when chemical and magnetic effects interplay with one another...

    D. D. Johnson, J. B. Staunton, F. J. Pinski… in MRS Online Proceedings Library (1991)

  16. No Access

    Chapter

    Relativistic Density-Functional Theory for Electrons in Solids

    Practising solid state physicists are accustomed to using two dramatically different approaches to describing the electron ‘glue’ that holds the atomic nuclei together. The first pictures the solid as made up ...

    B. L. Gyorffy, J. B. Staunton, H. Ebert… in The Effects of Relativity in Atoms, Molecu… (1991)

  17. No Access

    Article

    Photoemission Measurements from Nickel-Iron Alloys

    R. G. Jordan, M. A. Hoyland, D. D. Johnson, F. J. Pinski… in MRS Online Proceedings Library (1990)

  18. No Access

    Article

    Local Environmental Effects in Magnetic Alloys and Multilayers: Calculations of the Static Response Functions

    We have developed an ab-initio method for calculating the static response functions in substitutional alloys. For magnetic alloys, in addition to the nuclear diffuse scattering, a contribution to the alloy dif...

    D. D. Johnson, J. B. Staunton, B. L. Györffy… in MRS Online Proceedings Library (1989)

  19. No Access

    Chapter

    Local Density Theory of Magnetism and Its Interrelation with Compositional Order in Alloys

    It is well known that the most important source of magnetic interactions arises from electrostatic electron-electron interactions — the quantum mechanical exchange interactions. In magnetic insulators it is po...

    J. B. Staunton, B. L. Gyorffy, D. D. Johnson, F. J. Pinski… in Alloy Phase Stability (1989)

  20. No Access

    Chapter and Conference Paper

    Magnetism and chemical order in metallic alloys

    B. L. Gyorffy, D. D. Johnson, F. J. Pinski… in Electronic Band Structure and Its Applicat… (1987)