Temperature dependence of the nonlinear susceptibility in spin glasses

1982 ◽  
Vol 53 (11) ◽  
pp. 7693-7695 ◽  
Author(s):  
M. Fähnle ◽  
T. Egami
Keyword(s):  
Temperature Dependence ◽  
Spin Glasses ◽  
Nonlinear Susceptibility

scholarly journals Specific heat and nonlinear susceptibility in spin glasses with random fields

2019 ◽  
Vol 99 (1) ◽  
Author(s):  
M. V. Romitti ◽  
F. M. Zimmer ◽  
C. V. Morais ◽  
S. G. Magalhaes
Keyword(s):  
Specific Heat ◽  
Random Fields ◽  
Spin Glasses ◽  
Nonlinear Susceptibility

scholarly journals Magnetic Correlations in Spin Glasses above the Freezing Temperature investigated by High Field Mössbauer Spectroscopy

1998 ◽  
Vol 51 (2) ◽  
pp. 349 ◽  
Author(s):  
J. Bogner ◽  
H. Schachner ◽  
M. Reissner ◽  
W. Steiner
Keyword(s):  
External Field ◽  
Temperature Dependence ◽  
Power Law ◽  
Spin Glasses ◽  
High Field ◽  
Freezing Temperature ◽  
Hyperfine Fields ◽  
Magnetic Correlations ◽  
Neighbour Shell ◽  
Centre Shift

The strong dynamics of magnetic correlations are observed by high field 57Fe Mössbauer investigations for the spin glasses AuFe and Y(Fe, Al)2 in the temperature interval between the freezing temperature Tf and approximately 7 to 10Tf. All recorded spectra can be analysed with a model which takes into account these dynamics by allowing the formation of correlated states after a stochastically varying time τoff and their decay after a time τon, restricting the number of subspectra to the different number of Fe atoms in the first neighbour shell. Whereas for the different Fe environments, in addition to centre shift and quadrupole splitting, different hyperfine fields of the two stochastically formed states can always be resolved, the same set of τon and τoff values was obtained for all subspectra above approximately 4Tf. The external field hinders the decay of the correlated regions. The temperature dependence of ¿ on scales with Tf and exhibits a power law with exponents of –2 for the Fe-rich and –1 for the Fe-poor compounds.

Features of temperature dependence of electrical conductivity in multicomponent organic spin glasses

2016 ◽  
Vol 7 (4) ◽  
pp. 453-457
Author(s):  
A. M. Petrov ◽  
M. Yu. Dolomatov ◽  
R. Z. Bakhtizin ◽  
O. L. Ryzhikov ◽  
I. R. Khayrudinov
Keyword(s):  
Electrical Conductivity ◽  
Temperature Dependence ◽  
Spin Glasses

scholarly journals Chaotic temperature dependence in a model of spin glasses

2002 ◽  
Vol 28 (2) ◽  
pp. 199-208 ◽  
Author(s):  
F. Krzakala ◽  
O.C. Martin
Keyword(s):  
Temperature Dependence ◽  
Spin Glasses
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