Exchange Parameter Estimation And Spin Fluctuation Time Behavior In (la1-xcex)3al

Electron Spin Resonance (ESR) experiments were carried out in (La1-xCex)3Al doped with 1% Gd, for 0 ≤ x ≤ 0.07 and T > Tc (5.2 K). Using the ESR and magnetic susceptibility results we were able to estimate the Ce and Gd exchange parameters and the behavior of the Ce spin fluctuation time. © 1995.140-144PART 211411142Chen, Lawrence, Thompson, Willis, (1989) Phys. Rev. B, 40, p. 10766Sakurai, Matsuura, Komura, (1988) J. de Phys. Coll. C8, 49, p. 783Suzuki, Aoki, Nishigori, Fujita, Murashita, Sakurai, (1990) J. Magn. Magn. Mater., 90-91, p. 482Buschow, (1965) Philips Res. Rep., 20, p. 337Coldea, Schaeffer, Weissenberger, Elschner, (1987) Z. Phys. B Condensed Matter, 68, p. 25Krivenko, Zenin, Khaliullin, (1991) Sov. Phys. JETP, 73, p. 576Al'tshuler, Kataev, Khaliullin, (1983) Sov. Phys. Solid State, 25, p. 123