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 Detalle_Publicacion

Probing magnetic phase separation in manganites by nonlinear susceptibility

Abstract: At low frequencies ?=300Hz, nonlinear magnetic susceptibility of polycrystalline La;bsubesubbsubesubbsubesub&(Co, Ni);bsubesubbsubesub& samples near the ferromagnetic (FM)-paramagnetic (PM) phase transition reinforces the earlier observation, based on linear ac susceptibility, that these systems behave as a three-dimensional isotropic dipolar ferromagnet in the asymptotic critical regime and exhibit an isotropic dipolar to isotropic Heisenberg crossover. In addition, the nonlinear susceptibility results reveal the phase segregation of the conducting and insulating FM phases (clusters) within the conducting FM regime and existence of conducting FM clusters in the insulating PM matrix at high frequencies. © 2014 Elsevier B.V.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Bitla Y., Kaul S., Fernández Barquín L.,

 Fuente: Physica B: Condensed Matter. Volume 448, 1 September 2014, Pages 223–225

Editorial: Elsevier

 Fecha de publicación: 01/09/2014

Nº de páginas: 3

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.physb.2014.03.059

ISSN: 0921-4526,1873-2135

Url de la publicación: http://www.sciencedirect.com/science/article/pii/S0921452614002270

Autores/as

BITLA, Y.

SHARIKA NANDAN KAUL