Longitudinal spin dynamics in nickel fluorosilicate

2014 ◽  
Vol 40 (7) ◽  
pp. 635-640 ◽  
Author(s):  
E. G. Galkina ◽  
B. A. Ivanov ◽  
V. I. Butrim
Keyword(s):  
Spin Dynamics ◽  
Longitudinal Spin

Longitudinal spin dynamics in the Heisenberg ferromagnet: Diagrammatic approach

2002 ◽  
Vol 65 (21) ◽  
Author(s):  
Yu. A. Izyumov ◽  
N. I. Chaschin ◽  
V. Yu. Yushankhai
Keyword(s):  
Spin Dynamics ◽  
Heisenberg Ferromagnet ◽  
Longitudinal Spin

scholarly journals Muon-spin-relaxation study of the critical longitudinal spin dynamics in a dipolar Heisenberg ferromagnet

1996 ◽  
Vol 53 (1) ◽  
pp. 350-353 ◽  
Author(s):  
A. Yaouanc ◽  
P. Dalmas de Réotier ◽  
P. C. M. Gubbens ◽  
A. M. Mulders ◽  
F. E. Kayzel ◽  
...  
Keyword(s):  
Spin Relaxation ◽  
Spin Dynamics ◽  
Muon Spin ◽  
Muon Spin Relaxation ◽  
Heisenberg Ferromagnet ◽  
Longitudinal Spin ◽  
Relaxation Study

scholarly journals Longitudinal Spin Dynamics in the Heisenberg Antiferromagnet: Two-Magnon Excitations

2020 ◽  
Vol 65 (10) ◽  
pp. 865
Author(s):  
O. O. Boliasova ◽  
V. N. Krivoruchko
Keyword(s):  
Wave Vector ◽  
Spin Dynamics ◽  
Laser Pulses ◽  
Magnetization Dynamics ◽  
Longitudinal Magnetization ◽  
Fundamental Limits ◽  
Ultrafast Laser Pulses ◽  
Diagrammatic Technique ◽  
Antiferromagnetic Materials ◽  
Longitudinal Spin

Understanding the ultrafast spin dynamics in magnetically ordered materials is important for the comprehenssion of fundamental limits in spin-based magnetic electronics – magnonics. We have studied a microscopic model of magnetization dynamics in a two-sublattice antiferromagnet with the emphasis on longitudinal spin excitations. The diagrammatic technique for spin operators has been used to overcome limitations typical of phenomenological approaches. The graphical representations of spin wave propagators allow us to summing up the infinite series of distinctive diagrams. Its sum is transformed into an analytic expression for the longitudinal spin susceptibility xzz (q, w) applicable in all regions of the frequency w and wave vector q spaces beyond the hydrodynamical and critical regimes. It is found that the longitudinal magnetization dynamics consists of two types of excitations, which have different dependences on the temperature and wave vector q. The obtained result could be important for understanding the physics of nonequilibrium magnetic dynamics under the effect of ultrafast laser pulses in antiferromagnetic materials.

Longitudinal spin diffusion and nonlinear spin dynamics in a dilute−43He solution

1990 ◽  
Vol 65 (17) ◽  
pp. 2149-2152 ◽  
Author(s):  
G. Nunes ◽  
C. Jin ◽  
A. M. Putnam ◽  
D. M. Lee
Keyword(s):  
Spin Diffusion ◽  
Spin Dynamics ◽  
Longitudinal Spin

Spin-polarized−43He solutions: Longitudinal spin diffusion and nonlinear spin dynamics

1992 ◽  
Vol 46 (14) ◽  
pp. 9082-9103 ◽  
Author(s):  
G. Nunes ◽  
C. Jin ◽  
D. L. Hawthorne ◽  
A. M. Putnam ◽  
D. M. Lee
Keyword(s):  
Spin Diffusion ◽  
Spin Dynamics ◽  
Longitudinal Spin ◽  
Spin Polarized
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