Conventional And Photothermally Modulated Ferromagnetic Resonance Investigations Of A Nd2fe17 Powder Sample

We report ferromagnetic resonance (FMR) and photothermally modulated ferromagnetic resonance (PM-FMR) results for the ferromagnetic alloy Nd2Fe17. Calculations for the ferromagnetic resonance signal with the magnetization in the non-saturated regime are presented. A theoretical model to describe the FMR and PM-FMR spectra of this material in the form of a non-oriented pressed powder is discussed and fair agreement between experimental and calculated spectra is obtained. Our own numerical values of magnetization obtained over a wide temperature range are used for the PM-FMR signal calculation as well as resonance field and linewidth from our FMR experiments. © 1993.12801/02/15101110Pelzl, Netzelmann, Photoacoustic, Photothermal and Photochemical Processes at Surfaces and Thin Films (1989) Topics in Current Physics, 47, p. 313. , P. Hess, Springer-Verlag, BerlinBuschow, (1977) Rep. Prog. Phys., 40, p. 1179Wallace, (1985) Prog. Solid State Chem., 16, p. 127Chamel, Chicault, d'Aubigne, (1976) J. Phys. E: Sci. Instrum., 9, p. 87Katter, Wecker, Schultz, (1990) J. Magn. Magn. Mater., 92, p. L14Zhong, Radwanski, de Boer, Jacobs, Buschow, (1990) J. Magn. Magn. Mater., 86, p. 333Miraglia, Soubeyroux, Kolbeck, Isnard, Fruchart, Guillot, Structural and magnetic properties of ternary nitrides R2Fe17Nx (R ≡ Nd, Sm) (1991) Journal of the Less Common Metals, 171, p. 51Jiles, (1991) Introduction to Magnetism and Magnetic Materials, p. 94. , Chapman and Hall, LondonStrnat, Hoffer, Olson, Ostertag, Becker, (1967) J. Appl. Phys., 38, p. 1001Zhong, Donelly, Coey, Chevalier, Etourneau, Berlureau, Hydrogen absorption and desorption in Nd2Fe17 and Sm2Fe17 (1988) Journal of Materials Science, 23, p. 329Hoffer, Strnat, (1967) J. Appl. Phys., 38, p. 1377Schlömann, (1956) Rep. AIEE Conf. on MMM, , Boston, MASchlömann, Zeender, Ferromagnetic Resonance in Polycrystalline Nickel Ferrite Aluminate (1958) Journal of Applied Physics, 29, p. 341Geschwind, Clogston, (1957) Phys. Rev., 108, p. 49Schlömann, Spin-wave analysis of ferromagnetic resonance in polycrystalline ferrites (1958) Journal of Physics and Chemistry of Solids, 6, p. 242Skrotskii, Kurbatov, (1966) Ferromagnetic Resonance, p. 19. , S.V. Vonsovskii, Pergamon Press, OxfordValstyn, Hanton, Morrish, (1962) Phys. Rev., 128, p. 2078Netzelmann, Ferromagnetic resonance of particulate magnetic recording tapes (1990) Journal of Applied Physics, 68, p. 180