%0 Journal Article %1 WOS:000225202800036 %A Leite, RV %A Morais, BTF %A Pereira, JM %A Costa, RN %C PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS %D 2004 %I ELSEVIER SCIENCE BV %J JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS %K Green's Ising ferromagnet; function; impurities model-transverse; modes} spin wave; {Heisenberg %N 2-3 %P 385-391 %R 10.1016/j.jmmm.2004.06.010 %T Green's function theory for a magnetic impurity layer in a ferromagnetic Ising film with transverse %V 283 %X A Green's function formalism is used to calculate the spectrum of localized modes of an impurity layer implanted within a ferromagnetic thin film. The equations of motion for the Green's functions are determined in the framework of the Ising model in a transverse field. We show that depending on the thickness, exchange and effective field parameters, there is a ``crossover'' effect between the surface modes and impurity localized modes. For thicker films the results show that the degeneracy of the surface modes can be lifted by the presence of an impurity layer. (C) 2004 Elsevier B.V. All rights reserved.

@article{WOS:000225202800036, abstract = {A Green's function formalism is used to calculate the spectrum of localized modes of an impurity layer implanted within a ferromagnetic thin film. The equations of motion for the Green's functions are determined in the framework of the Ising model in a transverse field. We show that depending on the thickness, exchange and effective field parameters, there is a ``crossover'' effect between the surface modes and impurity localized modes. For thicker films the results show that the degeneracy of the surface modes can be lifted by the presence of an impurity layer. (C) 2004 Elsevier B.V. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}, author = {Leite, RV and Morais, BTF and Pereira, JM and Costa, RN}, biburl = {https://www.bibsonomy.org/bibtex/2ab8d141ad89365cad172221766cf254c/ppgfis_ufc_br}, doi = {10.1016/j.jmmm.2004.06.010}, interhash = {1532b148aef23d3671d385a48177ea2c}, intrahash = {ab8d141ad89365cad172221766cf254c}, issn = {0304-8853}, journal = {JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS}, keywords = {Green's Ising ferromagnet; function; impurities model-transverse; modes} spin wave; {Heisenberg}, number = {2-3}, pages = {385-391}, publisher = {ELSEVIER SCIENCE BV}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Green's function theory for a magnetic impurity layer in a ferromagnetic Ising film with transverse}, tppubtype = {article}, volume = 283, year = 2004 }