On the magnetic susceptibilities in disordered alloys. II. Multi orbital case, spin wave stiffness constant

Riedínger, R.; Nauciel‐Bloch, M.

doi:10.1088/0305-4608/5/4/017

Cited by 48 publications

(7 citation statements)

References 40 publications

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“…The function M ( E ) is necessary for the calculation of the conductivity (Velick9 1969) and of the spin wave stiffness Riedinger 1974, Riedinger andNauciel Bloch 1975). Numerical methods have been developed for its calculation by Riedinger and Nauciel Bloch (1975).…”

Section: S ( E )mentioning

confidence: 99%

Ordering and segregation processes in transition metal alloys in relation to their electronic structures

Gautier

Ducastelle

Giner

1975

Philosophical Magazine

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Section: S ( E )mentioning

confidence: 99%

Ordering and segregation processes in transition metal alloys in relation to their electronic structures

Gautier

Ducastelle

Giner

1975

Philosophical Magazine

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“…However, for the ferromagnetic alloys the formula for the magnon energy in the long-wavelength limit calculated from EMH [7] differs from the expression of Fukuyama [l], Edwards and Hill [2], or Riedinger and Nauciel-Bloch [4]. I n this paper we would like to show that if we use the properties of the Green function the method of EMH gives the same result for the average exchange spin wave stiffness constant as the Riedinger and Nauciel-Bloch method [4].…”

Section: Introductionmentioning

confidence: 80%

Application of CPA to the Magnon Hamiltonian

Jezierski

1983

Physica Status Solidi (b)

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The coherent potential approximation is applied to the effective magnon Hamiltonian. The magnon creation operator is defined in this method for the average medium. The average exchange spin wave stiffness constant is calculated and the expression is given for the magnon scattering contribution to the stiffness constant. The method of calculation of the magnon energy in disordered alloys presented in this paper gives the same result as the method based on the dynamical transverse susceptibility.Die ,,coherent-potential"-Approximation (CPA) wird auf den effektiven Magnon-Hamiltonoperator angewendet. Der Magnonen-Erzeugungsoperator wird bei dieser Methode fur das gemittelte Medium definiert. Die mittlere Austausch-Steifigkeitskonstante der Qpinwellen wird berechnet und der Ausdruck fur den Beitrag der Magnonenstreuung zur Steifigkeitskonstante angegeben. Die in der Arbeit vorgelegte Methode zur Berechnung der Magnonenergie in fehlgeordneten Legierungen fuhrt zum gleichen Ergebnis wie die auf der dynamischen transversalen Suszeptibilitat beruhende Methode.

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“…They warn, however, that their result is too model dependent to be relied upon. Calculations based on a more realistic band structure and performed within the same approximation as that of Edwards and Hill (1973) were presented very recently by Riedinger and Nauciel-Bloch (1975). Their results are shown by the curve D in figure 3(a).…”

Section: R = C ( S I / S D J 2 / [ N ( N -2 ) ]mentioning

confidence: 93%

“…Wakoh (1971); C . Edwards and Hill (1973); D, Riedinger and Nauciel-Bloch (1975). ( b ) The computed difference AD for maximum ordering and for the disordered alloy.…”

Section: R = C ( S I / S D J 2 / [ N ( N -2 ) ]mentioning

confidence: 99%