%0 Journal Article %1 WOS:000181702000089 %A Pereira, JM %A Cottam, MG %C PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS %D 2003 %I ELSEVIER SCIENCE BV %J JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS %K antiferromagnetics; films} magnetic of properties thin waves; {spin %N SI %P 329-331 %R 10.1016/S0304-8853(02)01039-9 %T Interactions between dipole-exchange spin waves in ultrathin antiferromagnetic films %V 258 %X A finite-temperature perturbation formalism is employed to study the nonlinear processes for interactions between the discrete spin waves (SW) in ultrathin antiferromagnetic films, taking account of both dipole-dipole and exchange coupling between the spins. Within a microscopic Hamiltonian approach we obtain the dominant three- and four-magnon interactions at low temperatures, and their contributions to the frequency shift and damping (or reciprocal lifetime) of the discrete SW are evaluated. Numerical results applied to MnF2 are presented. (C) 2002 Elsevier Science B.V. All rights reserved.

@article{WOS:000181702000089, abstract = {A finite-temperature perturbation formalism is employed to study the nonlinear processes for interactions between the discrete spin waves (SW) in ultrathin antiferromagnetic films, taking account of both dipole-dipole and exchange coupling between the spins. Within a microscopic Hamiltonian approach we obtain the dominant three- and four-magnon interactions at low temperatures, and their contributions to the frequency shift and damping (or reciprocal lifetime) of the discrete SW are evaluated. Numerical results applied to MnF2 are presented. (C) 2002 Elsevier Science B.V. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}, author = {Pereira, JM and Cottam, MG}, biburl = {https://www.bibsonomy.org/bibtex/2cb98e53765fea9557fbdfa6535dffe26/ppgfis_ufc_br}, doi = {10.1016/S0304-8853(02)01039-9}, interhash = {608cfafcb6b17367e31f9c24c2ee05b9}, intrahash = {cb98e53765fea9557fbdfa6535dffe26}, issn = {0304-8853}, journal = {JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS}, keywords = {antiferromagnetics; films} magnetic of properties thin waves; {spin}, note = {2nd Moscow International Symposium on Magnetism (MISM 2001), MOSCOW STATE UNIV, MOSCOW, RUSSIA, JUN 20-24, 2001}, number = {SI}, pages = {329-331}, publisher = {ELSEVIER SCIENCE BV}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Interactions between dipole-exchange spin waves in ultrathin antiferromagnetic films}, tppubtype = {article}, volume = 258, year = 2003 }