Actas de congresos
Investigation Of Spin-glass Behavior In The Lnru-1222 (ln=gd, Dy, Ho, Y) System
Registro en:
Physica C: Superconductivity And Its Applications. , v. 408-410, n. 1-4, p. 183 - 184, 2004.
9214534
10.1016/j.physc.2004.02.159
2-s2.0-4344607440
Autor
Cardoso C.A.
Araujo-Moreira F.M.
Awana V.P.S.
Takayama-Muromachi E.
De Lima O.F.
Yamauchi H.
Karppinen M.
Institución
Resumen
The dynamics of the magnetic properties of polycrystalline RuSr 2Ln1.5Ce0.5Cu2O10 (LnRu-1222, Ln=Gd, Y, Ho, Nd) have been studied by ac susceptibility. A frequency-dependent cusp was observed in χac vs. T measurements, which is interpreted as a spin-glass transition. These results are contrasted with the regular antiferromagnetic transition observed for YRu-1212. © 2004 Elsevier B.V. All rights reserved. 408-410 1-4 183 184 Felner, I., (1997) Phys. Rev. B, 55, p. 3374 Bernhard, C., (1999) Phys. Rev. B, 59, p. 14099 Živković, I., (2002) Phys. Rev. B, 65, p. 144420 Cardoso, C.A., (2003) Phys. Rev. B, 67, p. 020407 Mydosh, J.A., (1993) Spin Glasses: An Experimental Introduction, , London: Taylor & Francis