Spin dynamics in the cubic Heisenberg ferromagnet EuS

1984 ◽  
Vol 30 (11) ◽  
pp. 6504-6513 ◽  
Author(s):  
H. G. Bohn ◽  
A. Kollmar ◽  
W. Zinn
Keyword(s):  
Spin Dynamics ◽  
Heisenberg Ferromagnet

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 The connection between vortex-like topological excitations and conventional excitations in quantum ferromagnetic spin systems on two-dimensional lattice and their stability

2015 ◽  
Vol 29 (29) ◽  
pp. 1550209
Author(s):  
Subhajit Sarkar ◽  
Ranjan Chaudhury ◽  
Samir K. Paul
Keyword(s):  
Nearest Neighbor ◽  
Magnetic Measurements ◽  
Spin Dynamics ◽  
Threshold Value ◽  
System Size ◽  
Heisenberg Ferromagnet ◽  
Two Dimensional ◽  
Stable States ◽  
Dimensional Lattice ◽  
Topological Excitations

In this paper, we present a scheme for the construction of quantum states of vortex-like topological excitations corresponding to spin-1/2 strongly XY-anisotropic nearest neighbor Heisenberg ferromagnet on two-dimensional lattice. The procedure involving Pauli spin basis states is carried out corresponding to both infinite dilute limit and finite density limit of vortex/anti-vortex. It is found that the corresponding quantum mechanical states representing charge 1 quantum vortices/anti-vortices can be expressed as linear combinations of single magnon states, composite multi-magnon states and the ground state. Detailed calculations show that these states are quantum mechanically stable states of the Hamiltonian only when the system size exceeds certain threshold value. Our analysis indicates that the interactions between different magnon modes can very well generate these topological excitations. Possible applications of our calculations to real magnetic systems are also discussed. Magnetic measurements probing spin dynamics may be undertaken to verify the existence of the threshold size for the stability of vortices.

Spin dynamics in a 3d Heisenberg ferromagnet in the paramagnetic state. I

Physica B+C ◽  
1981 ◽  
Vol 106 (1) ◽  
pp. 83-92 ◽  
Author(s):  
J. Labrujere ◽  
T.O. Klaassen ◽  
N.J. Poulis
Keyword(s):  
Spin Dynamics ◽  
Paramagnetic State ◽  
Heisenberg Ferromagnet

Spin dynamics in a 3D Heisenberg ferromagnet. V. Finite fields and temperatures

1982 ◽  
Vol 15 (31) ◽  
pp. 6423-6435 ◽  
Author(s):  
J Labrujere ◽  
L J de Haas ◽  
G van Velzen ◽  
T O Klaassen ◽  
N J Poulis
Keyword(s):  
Finite Fields ◽  
Spin Dynamics ◽  
Heisenberg Ferromagnet

Low-frequency spin dynamics of a 3D Heisenberg ferromagnet in the critical region

Physica B+C ◽  
1982 ◽  
Vol 109-110 ◽  
pp. 2138-2140
Author(s):  
J. Labrujere ◽  
G. Van Velzen ◽  
T.O. Klaassen ◽  
N.J. Poulis
Keyword(s):  
Critical Region ◽  
Spin Dynamics ◽  
Low Frequency ◽  
Heisenberg Ferromagnet

Critical spin dynamics of a Heisenberg ferromagnet

1987 ◽  
Vol 20 (25) ◽  
pp. 3953-3968 ◽  
Author(s):  
U Balucani ◽  
M G Pini ◽  
P Carra ◽  
S W Lovesey ◽  
V Tognetti
Keyword(s):  
Spin Dynamics ◽  
Heisenberg Ferromagnet
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