Research Article

Thermodynamics of f.c.c.-Ni–Fe Alloys in a Static Applied Magnetic Field

Table 2

The “exchange” (magnetic) interaction energies Fourier components in [meV] for two quasi-wave vectors 𝐤 Γ ( 0 0 0 ) and 𝐤 𝑋 ( 1 0 0 ) for f.c.c.-Ni–Fe alloys (according to [26, 27]).

𝑠 N i 𝑠 F e 𝐽 N i N i ( 𝟎 ) 𝐽 F e F e ( 𝟎 ) 𝐽 F e N i ( 𝟎 ) 𝐽 N i N i ( 𝐤 𝑋 ) 𝐽 F e F e ( 𝐤 𝑋 ) 𝐽 F e N i ( 𝐤 𝑋 )

1 / 2 3 / 2 −215.9 54.9 −231.5 72.0 −18.3 77.2