Influence of longitudinal spin fluctuations on the phase transition features in chiral magnets

2018 ◽  
Vol 97 (14) ◽  
Author(s):  
A. M. Belemuk ◽  
S. M. Stishov
Keyword(s):  
Phase Transition ◽  
Spin Fluctuations ◽  
Longitudinal Spin

Extended Dynamic Spin-Fluctuation Theory with Application to Iron

2012 ◽  
Vol 190 ◽  
pp. 55-58 ◽  
Author(s):  
B.I. Reser ◽  
N.B. Melnikov ◽  
Vladimir I. Grebennikov
Keyword(s):  
Phase Transition ◽  
Magnetic Properties ◽  
Green Function ◽  
Spin Fluctuation ◽  
Spin Fluctuations ◽  
Fluctuation Theory ◽  
Dynamic Spin ◽  
Discontinuous Phase ◽  
The Mean ◽  
Extended Dynamic

The problem of discontinuous phase transition in the dynamic spin-fluctuation theory is resolved by taking into account large anharmonic spin fluctuations and nonlocality of the mean Green function. The extended theory is applied to the calculation of magnetic properties of iron.

Longitudinal spin fluctuations in thermal and magnetic properties of TlCo2Se2−xSx

2004 ◽  
Vol 281 (2-3) ◽  
pp. 388-393 ◽  
Author(s):  
S. Ronneteg ◽  
R. Berger ◽  
R.Z. Levitin ◽  
E.A. Popova ◽  
R.M. Scherbov ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Spin Fluctuations ◽  
Longitudinal Spin

scholarly journals Anab initioeffective Hamiltonian for magnetism including longitudinal spin fluctuations

2005 ◽  
Vol 72 (10) ◽  
Author(s):  
S. Shallcross ◽  
A. E. Kissavos ◽  
V. Meded ◽  
A. V. Ruban
Keyword(s):  
Spin Fluctuations ◽  
Longitudinal Spin

scholarly journals Электрофизические свойства поликристаллических пленок BiFe-=SUB=-0.95-=/SUB=-Co-=SUB=-0.05-=/SUB=-O-=SUB=-3-=/SUB=-

2021 ◽  
Vol 63 (6) ◽  
pp. 721
Author(s):  
О.Б. Романова ◽  
В.В. Кретинин ◽  
С.С. Аплеснин ◽  
М.Н. Ситников ◽  
Л.В. Удод ◽  
...  
Keyword(s):  
Thin Film ◽  
Phase Transition ◽  
Impedance Spectrum ◽  
Spin Fluctuations ◽  
Kinetic Properties ◽  
Surface Phase ◽  
Cobalt Ions ◽  
Hall Effect Measurements ◽  
Superparamagnetic Clusters ◽  
Electronic Doping

Semiconductor BiFe0.95Co0.05O3 thin-film compounds were obtained by a flare technique. The surface morphology of the films and the effect of electronic doping by replacing trivalent iron with cobalt ions on the structural, optical, magnetic, and kinetic properties in the temperature range 77-600 K in magnetic fields up to 12 kOe are studied. The existence of two relaxation channels in the impedance spectrum at frequencies of 0.1–1000 kHz has been established. The negative magnetoresistance in the anomalous magnetization region and the maximum magnetoimpedance in the vicinity of the surface phase transition has been found. Using the Hall effect measurements, carrier types prevailing in the magnetoresistance and magnetoimpedance effects has been found. The magnetization anomalies are explained using the model of superparamagnetic clusters and the magnetoresistance is attributed to the scattering of carriers by the spin fluctuations.

scholarly journals Longitudinal spin fluctuations in nickel

1991 ◽  
Vol 43 (1) ◽  
pp. 575-584 ◽  
Author(s):  
P. Böni ◽  
J. L. Martnez ◽  
J. M. Tranquada
Keyword(s):  
Spin Fluctuations ◽  
Longitudinal Spin

The dynamics of longitudinal spin fluctuations

1988 ◽  
Vol 63 (8) ◽  
pp. 3820-3822
Author(s):  
U. Balucani ◽  
R. Vaia ◽  
A. Federighi ◽  
V. Tognetti
Keyword(s):  
Spin Fluctuations ◽  
Longitudinal Spin
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