Magnetic susceptibility of the spin-glass with the itinerant-electron antiferromagnet as a host

1983 ◽  
Vol 61 (12) ◽  
pp. 1599-1608 ◽  
Author(s):  
M. Crişan ◽  
Zs. Gulácsi ◽  
M. Gulácsi

The magnetic susceptibility of the spin-glass state that may appear in an itinerant-electron antiferromagnet containing magnetic impurities has been calculated as a function of the temperature. The spin–spin interaction mediated by the condensed electrons has been calculated and a short-range interaction of the form (cos 2k0r/r2)e−r/ξ0 has been obtained. A percolation mechanism has been used in order to explain the occurrence of the spin-glass state.

1983 ◽  
Vol 50 (3-4) ◽  
pp. 371-378 ◽  
Author(s):  
M. Gulacsi ◽  
Zs. Gulacsi ◽  
M. Crişan

The long wavelength non-interacting spin wave energy for metals at low temperatures is expressed as ћω q = Dq 2 = ( D 0 + D 1 T 2 ) q 2 . The dependence of the coefficient D 1 on the density of states function, the number of electrons per atom, n , and the effective short range interaction energy, I , is discussed. The variation of D with T 2 comes from the change with temperature of the relative occupation ζ and the chemical potentials of the ± spin sub-bands as well as from the direct asymptotic expansion of the Fermi distribution functions occurring in the expression for D .


2017 ◽  
Vol 29 (40) ◽  
pp. 405806 ◽  
Author(s):  
W P Cai ◽  
Z R Yan ◽  
R M Liu ◽  
M H Qin ◽  
M Zeng ◽  
...  

2006 ◽  
Vol 74 (10) ◽  
Author(s):  
Shilpi Karmakar ◽  
S. Taran ◽  
B. K. Chaudhuri ◽  
H. Sakata ◽  
C. P. Sun ◽  
...  

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