Spin-fluctuation effects inCeSixalloys: High-field heat-capacity, magnetic susceptibility, and electrical resistivity studies, and a comment onTiBe2

1987 ◽  
Vol 36 (1) ◽  
pp. 341-351 ◽  
Author(s):  
S. K. Dhar ◽  
Karl A. Gschneidner ◽  
W. H. Lee ◽  
P. Klavins ◽  
R. N. Shelton
Keyword(s):  
Heat Capacity ◽  
Electrical Resistivity ◽  
Magnetic Susceptibility ◽  
High Field ◽  
Spin Fluctuation ◽  
Fluctuation Effects

The heat capacity of liquid 3He beyond T3 log T

1987 ◽  
Vol 65 (11) ◽  
pp. 1549-1551
Author(s):  
A. M. J. Schakel ◽  
Ch. J. Calkoen ◽  
Ch. G. van Weert
Keyword(s):  
Heat Capacity ◽  
Magnetic Susceptibility ◽  
Temperature Dependence ◽  
Analytic Functions ◽  
Spin Fluctuation ◽  
Landau Theory ◽  
Particle Mass ◽  
Fermi Liquids ◽  
Quasi Particle ◽  
Fluctuation Model

The heat capacity of liquid 3He up to 2.5 K is calculated on the basis of a spin-fluctuation model in the context of the Landau theory of Fermi liquids. A good fit of the data is achieved by including the temperature dependence of the magnetic susceptibility and by using a different, smaller, quasi-particle mass. It is also shown that the magnetic susceptibility and the compressibility are analytic functions of the temperature.

Effect of Pressure on the Spin Fluctuations and the Helical Ferromagnetism of MnSi

2016 ◽  
Vol 257 ◽  
pp. 30-33
Author(s):  
Aleksandr A. Povzner ◽  
Arkadij G. Volkov ◽  
Ivan A. Yasyulevich
Keyword(s):  
Magnetic Susceptibility ◽  
Local Minimum ◽  
Spin Fluctuation ◽  
Magnetic Moments ◽  
Paramagnetic State ◽  
Spin Fluctuations ◽  
Temperature Dependent ◽  
Effect Of Pressure ◽  
Fluctuation Effects ◽  
Moriya Interaction

The effect of pressure on the Neel temperature (TN) and on the temperature dependence of the magnetic susceptibility of a helicoidal ferromagnetic MnSi was analyzed as part of the LDA+U-model augmented with the account of the relativistic antisymmetric Dzyaloshinskii-Moriya interaction. It was shown that the Fermi level is in the area of DOS local minimum. This causes instability of magnetic solutions and the occurrence of higher amplitude zero spin fluctuations simulating the pattern of local magnetic moments. An increase in temperature-dependent spin-fluctuation effects with an increase in pressure leads to a decrease in TN. As a result, at pressures above 14.45 kbar, zero spin fluctuations are retained over the entire temperature range below TN. After disappearance of helicoidal ferromagnetism, a paramagnetic state occurs where the effect of the abrupt suppression of local magnetic moments takes place upon a temperature increase.

Electrical Resistivity, Magnetic Susceptibility and Thermoelectric Power of PtGa2

1990 ◽  
Author(s):  
Li-Shing Hsu ◽  
Lu-Wei Zhou ◽  
F. L. Machado ◽  
W. G. Clark ◽  
R. S. Williams
Keyword(s):  
Electrical Resistivity ◽  
Magnetic Susceptibility ◽  
Thermoelectric Power
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