S Madeswaran et al 2009 J. Phys.: Conf. Ser. 191 012024 doi:10.1088/1742-6596/191/1/012024
S Madeswaran1, R Tokumaru2, S Tamano2, S Goto2, K Tokiwa1,2 and T Watanabe1
Show affiliationsTextured Nd-Fe-B thin films with hard magnetic properties were prepared on a Ta (110) buffer layered glass substrates using radio frequency (RF) sputtering deposition. We investigated the influence of substrate temperature, sputtering gas pressure, RF power and film thickness on their microstructural and magnetic properties. Composition in the Nd-Fe-B thin films prepared using the same target with an Nd/Fe ratio of 0.32 was markedly changed (varied between 0.21 and 0.31) depending on the Ar pressure and the RF power. Well-textured Nd-Fe-B films grown at a deposition pressure of 7.0 Pa, a temperature of 550 °C, and a power of 100 W revealed better magnetic properties: Jr = 1.1 T, Hc = 1130 kA/m and BH(max) = 236 kJ/m3.
75.70.Ak Magnetic properties of monolayers and thin films
75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects
68.55.-a Thin film structure and morphology
Issue 1 (2009)
S Madeswaran et al 2009 J. Phys.: Conf. Ser. 191 012024
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