Results 211 to 220 of about 60,563 (256)

WHAT IS THE SPIN OF A SPIN WAVE?

Physics Letters A, 1981
Abstract We argue that the spin of a spin wave in the Heisenberg antiferromagnetic chain of spins 1 2 is equal to 1 2 rather than 1 as is generally considered to be true.
L.D. Faddeev, L.A. Takhtajan
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Spin waves in HoZn

Journal of Physics F: Metal Physics, 1977
The spin wave spectrum of HoZn (CsCl-structure) has been studied at 4.2 K. Two branches were followed along the principal symmetry directions. The data have been analysed following a Green’s functions formalism to obtain the Fourier transform of interactions.
B. Hennion, J. Pierre, D. Schmitt, P. Morin   +3 more
openaire   +1 more source

Surface spin waves

Solid State Communications, 1967
Abstract A theoretical investigation has been made of surface spin waves localized at a (001) surface of a ferromagnetic simple cubic lattice with nearest and next-nearest neighbor exchange interactions. The excitations spectrum for the surface spin waves has been obtained and compared with that for bulk spin waves.
I. P. Ipatova, A. A. Klochikhin, A. A. Maradudin, R. F. Wallis   +3 more
openaire   +1 more source

On spin waves in the spin-density wave ground state

Journal of Physics C: Solid State Physics, 1972
Some remarks about interpretation of spin waves in the spin-density wave ground state are given.
A Sukiennicki, R Swirkowicz, L Adamowicz
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Spin waves in multiple-spin-density-wave systems

Journal of Physics C: Solid State Physics, 1986
The spin wave modes in an anisotropic Heisenberg model are investigated for a triple-spin-density-wave (TSDW) ground state in a FCC lattice. Explicit solutions are obtained in the diagonal-exchange regime in all directions. The solutions are also given in the (0,0, xi ) and ( xi , xi ,0) directions for the above model including non-diagonal exchange ...
M W Long, W Yeung
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Acoustic wave surfing: spin waves and spin pumping driven by elastic wave

Journal of Physics D: Applied Physics, 2021
Abstract In magnon spintronics it is fundamental that magnons can propagate over large distances to allow spin flux or information to be processed. Through micromagnetic simulations we investigate the spin-wave propagation driven by acoustic excitation in narrow Ni stripes, varying the level of coupling between spin and acoustic waves.
D Froes, M Arana, L C Sampaio, J P Sinnecker   +3 more
openaire   +1 more source

Spin waves in a spin glass

Journal of Physics F: Metal Physics, 1981
It is shown that, in an isotropic three-dimensional spin glass with an axial anisotropy energy, three spin wave branches exist in the limit k to O. The two transverse branches have an identical gap in this limit while the longitudinal branch does not. The transverse branches are split by an external static field.
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Spin waves in itinerant multiple-spin-density-wave systems. II

Journal of Physics F: Metal Physics, 1987
For pt.I see ibid., vol.17, no.5, p.1175 (1987). The spin wave energies and widths for linear- (LSDW) and multiple-spin-density-wave (MSDW) systems are calculated using the formalism developed in pt.I for an itinerant model. Calculations were made for the wave-vector q parallel and perpendicular to the magnetisation in the LSDW state; the velocities ...
M W Long, W Yeung
openaire   +1 more source

Spin Waves

Cryogenics, 1969
W. Baltensperger, W. Baltensperger
  +5 more sources