Spin-Wave—Spin-Wave Scattering in a Heisenberg Ferromagnet

1965 ◽  
Vol 138 (6A) ◽  
pp. A1621-A1629 ◽  
Author(s):  
R. G. Boyd ◽  
Joseph Callaway
Keyword(s):  
Spin Wave ◽  
Wave Scattering ◽  
Heisenberg Ferromagnet

Spin Wave-Spin Wave Scattering in a Heisenberg Ferromagnet

1964 ◽  
Vol 12 (19) ◽  
pp. 540-541 ◽  
Author(s):  
R. G. Boyd ◽  
Joseph Callaway
Keyword(s):  
Spin Wave ◽  
Wave Scattering ◽  
Heisenberg Ferromagnet

On the Multiple Spin Wave Scattering of Neutrons in Ferromagnets

1956 ◽  
Vol 69 (12) ◽  
pp. 939-940 ◽  
Author(s):  
R J Elliott ◽  
R D Lowde ◽  
W Marshall
Keyword(s):  
Spin Wave ◽  
Wave Scattering

EFFECTS OF PHOTO-EXCITATION AND MAGNON SCATTERING ON FERROMAGNETIC TRANSITION TEMPERATURE OF THE DILUTED MAGNETIC SEMICONDUCTOR (Ga1 - x, Mnx)As

2011 ◽  
Vol 25 (04) ◽  
pp. 273-280 ◽  
Author(s):  
CHERNET AMENTE ◽  
P. SINGH
Keyword(s):  
Transition Temperature ◽  
Spin Wave ◽  
Wave Scattering ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Ferromagnetic Transition ◽  
Photon Irradiation ◽  
Model Hamiltonian ◽  
Diluted Magnetic ◽  
System Properties

Effects of photo-excitation and spin-wave scattering on magnetization of the diluted magnetic semiconductor (DMS) ( Ga , Mn ) As are theoretically studied. Green function formalism is used to find expression for magnetization and ferromagnetic transition temperature TC starting with a model Hamiltonian consisting of magnons, photons and an interaction of magnons with photons. According to our calculation, there is TC in the absence of magnetic impurity, x = 0, indicating that there could be electronically unpaired influential carriers/holes induced by photon irradiation resulting in residual itinerant band magnetization which can be revealed by experiments. Unusual upturn in magnetization near 0 K temperature values for larger magnon–photon coupling constant is also indicated. Moreover, enhancement of magnetization is established with increase in impurity concentration and even further in the presence of photon–magnon coupling which however decreases due to spin-wave scattering. This leads to the conclusion that at lower temperatures photon irradiation and at higher temperatures spin-wave scattering could affect the system properties predominantly.

Effect of Single-Ion Anisotropy on Two-Spin-Wave Bound State in a Heisenberg Ferromagnet

1970 ◽  
Vol 2 (3) ◽  
pp. 772-778 ◽  
Author(s):  
Richard Silberglitt ◽  
Jerry B. Torrance
Keyword(s):  
Spin Wave ◽  
Bound State ◽  
Heisenberg Ferromagnet

Interface Magnetism and Spin Wave Scattering in Ferromagnet-Insulator-Ferromagnet Tunnel Junctions

1998 ◽  
Vol 80 (13) ◽  
pp. 2941-2944 ◽  
Author(s):  
Jagadeesh S. Moodera ◽  
Janusz Nowak ◽  
Rene J. M. van de Veerdonk
Keyword(s):  
Spin Wave ◽  
Wave Scattering ◽  
Tunnel Junctions ◽  
Interface Magnetism
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